1231746006: Isolated agenesis of cerebellar vermis (disorder)

• SNOMED CT Concept\Clinical finding (finding)\...
• \Head finding (finding)\Finding of brain\Disorder of brain (disorder)\Cerebellar disorder\Absence of the vermis\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Head finding (finding)\Finding of brain\Disorder of brain (disorder)\Cerebellar disorder\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Head finding (finding)\Finding of brain\Disorder of brain (disorder)\Congenital anomaly of brain\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Head finding (finding)\Finding of brain\Disorder of brain (disorder)\Congenital anomaly of brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Head finding (finding)\Finding of brain\Disorder of brain (disorder)\Congenital anomaly of brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Head finding (finding)\Disorder of head (disorder)\Congenital anomaly of head\Congenital anomaly of brain\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Head finding (finding)\Disorder of head (disorder)\Congenital anomaly of head\Congenital anomaly of brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Head finding (finding)\Disorder of head (disorder)\Congenital anomaly of head\Congenital anomaly of brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Head finding (finding)\Disorder of head (disorder)\Disorder of brain (disorder)\Cerebellar disorder\Absence of the vermis\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Head finding (finding)\Disorder of head (disorder)\Disorder of brain (disorder)\Cerebellar disorder\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Head finding (finding)\Disorder of head (disorder)\Disorder of brain (disorder)\Congenital anomaly of brain\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Head finding (finding)\Disorder of head (disorder)\Disorder of brain (disorder)\Congenital anomaly of brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Head finding (finding)\Disorder of head (disorder)\Disorder of brain (disorder)\Congenital anomaly of brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Central nervous system finding\Finding of brain\Disorder of brain (disorder)\Cerebellar disorder\Absence of the vermis\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Central nervous system finding\Finding of brain\Disorder of brain (disorder)\Cerebellar disorder\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Central nervous system finding\Finding of brain\Disorder of brain (disorder)\Congenital anomaly of brain\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Central nervous system finding\Finding of brain\Disorder of brain (disorder)\Congenital anomaly of brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Central nervous system finding\Finding of brain\Disorder of brain (disorder)\Congenital anomaly of brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Central nervous system finding\Disorder of the central nervous system (disorder)\Congenital anomaly of central nervous system\Congenital absence of the spinal cord and brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Central nervous system finding\Disorder of the central nervous system (disorder)\Congenital anomaly of central nervous system\Congenital absence of the spinal cord and brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Central nervous system finding\Disorder of the central nervous system (disorder)\Congenital anomaly of central nervous system\Congenital anomaly of brain\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Central nervous system finding\Disorder of the central nervous system (disorder)\Congenital anomaly of central nervous system\Congenital anomaly of brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Central nervous system finding\Disorder of the central nervous system (disorder)\Congenital anomaly of central nervous system\Congenital anomaly of brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Central nervous system finding\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Cerebellar disorder\Absence of the vermis\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Central nervous system finding\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Cerebellar disorder\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Central nervous system finding\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Congenital anomaly of brain\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Central nervous system finding\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Congenital anomaly of brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Central nervous system finding\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Congenital anomaly of brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Fetal and/or neonatal disorder\Congenital disease\Congenital malformation\Congenital anomaly of nervous system\Congenital anomaly of central nervous system\Congenital absence of the spinal cord and brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Fetal and/or neonatal disorder\Congenital disease\Congenital malformation\Congenital anomaly of nervous system\Congenital anomaly of central nervous system\Congenital absence of the spinal cord and brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Fetal and/or neonatal disorder\Congenital disease\Congenital malformation\Congenital anomaly of nervous system\Congenital anomaly of central nervous system\Congenital anomaly of brain\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Fetal and/or neonatal disorder\Congenital disease\Congenital malformation\Congenital anomaly of nervous system\Congenital anomaly of central nervous system\Congenital anomaly of brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Fetal and/or neonatal disorder\Congenital disease\Congenital malformation\Congenital anomaly of nervous system\Congenital anomaly of central nervous system\Congenital anomaly of brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Fetal and/or neonatal disorder\Congenital disease\Congenital malformation\Congenital anomaly of head\Congenital anomaly of brain\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Fetal and/or neonatal disorder\Congenital disease\Congenital malformation\Congenital anomaly of head\Congenital anomaly of brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Fetal and/or neonatal disorder\Congenital disease\Congenital malformation\Congenital anomaly of head\Congenital anomaly of brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Congenital anomaly of nervous system\Congenital anomaly of central nervous system\Congenital absence of the spinal cord and brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Congenital anomaly of nervous system\Congenital anomaly of central nervous system\Congenital absence of the spinal cord and brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Congenital anomaly of nervous system\Congenital anomaly of central nervous system\Congenital anomaly of brain\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Congenital anomaly of nervous system\Congenital anomaly of central nervous system\Congenital anomaly of brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Congenital anomaly of nervous system\Congenital anomaly of central nervous system\Congenital anomaly of brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Congenital anomaly of central nervous system\Congenital absence of the spinal cord and brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Congenital anomaly of central nervous system\Congenital absence of the spinal cord and brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Congenital anomaly of central nervous system\Congenital anomaly of brain\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Congenital anomaly of central nervous system\Congenital anomaly of brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Congenital anomaly of central nervous system\Congenital anomaly of brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Cerebellar disorder\Absence of the vermis\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Cerebellar disorder\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Congenital anomaly of brain\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Congenital anomaly of brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Congenital anomaly of brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of head (disorder)\Congenital anomaly of head\Congenital anomaly of brain\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of head (disorder)\Congenital anomaly of head\Congenital anomaly of brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of head (disorder)\Congenital anomaly of head\Congenital anomaly of brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of head (disorder)\Disorder of brain (disorder)\Cerebellar disorder\Absence of the vermis\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of head (disorder)\Disorder of brain (disorder)\Cerebellar disorder\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of head (disorder)\Disorder of brain (disorder)\Congenital anomaly of brain\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of head (disorder)\Disorder of brain (disorder)\Congenital anomaly of brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Disorder of head (disorder)\Disorder of brain (disorder)\Congenital anomaly of brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Developmental disorder\Congenital malformation\Congenital anomaly of nervous system\Congenital anomaly of central nervous system\Congenital absence of the spinal cord and brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Developmental disorder\Congenital malformation\Congenital anomaly of nervous system\Congenital anomaly of central nervous system\Congenital absence of the spinal cord and brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Developmental disorder\Congenital malformation\Congenital anomaly of nervous system\Congenital anomaly of central nervous system\Congenital anomaly of brain\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Developmental disorder\Congenital malformation\Congenital anomaly of nervous system\Congenital anomaly of central nervous system\Congenital anomaly of brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Developmental disorder\Congenital malformation\Congenital anomaly of nervous system\Congenital anomaly of central nervous system\Congenital anomaly of brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Developmental disorder\Congenital malformation\Congenital anomaly of head\Congenital anomaly of brain\Dysgenesis of the cerebellum\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Developmental disorder\Congenital malformation\Congenital anomaly of head\Congenital anomaly of brain\Anencephalus\Congenital brain aplasia (disorder)\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.
• \Disease\Developmental disorder\Congenital malformation\Congenital anomaly of head\Congenital anomaly of brain\Anencephalus\Congenital absence of part of brain\Aplasia of cerebellum\Aplasia of the vermis\A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.

Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jul 2022. Module: SNOMED CT core

Descriptions:

Id	Description	Lang	Type	Status	Case?	Module
5400208010	A rare, congenital, cerebellar malformation disorder characterized by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnea, and delayed gait acquisition, as well as delayed speech and language development.	en	Definition	Active	Entire term case sensitive (core metadata concept)	SNOMED CT core
5400209019	A rare, congenital, cerebellar malformation disorder characterised by complete or partial cerebellar vermis agenesis, with no other associated malformations or anomalies. Patients may be asymptomatic, although psychomotor delay, hypotonia and incoordination are usually associated. Additional variable manifestations include intellectual disability, oculomotor abnormalities (such as nystagmus, impaired smooth pursuit, impaired saccades, strabismus, ptosis, and oculomotor apraxia), retinopathy, abnormal visual evoked potentials, ataxia, episodic hyperpnoea, and delayed gait acquisition, as well as delayed speech and language development.	en	Definition	Active	Entire term case sensitive (core metadata concept)	SNOMED CT core
5074098011	Isolated cerebellar vermis agenesis	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
5074099015	Isolated agenesis of cerebellar vermis (disorder)	en	Fully specified name	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
5074100011	Isolated agenesis of cerebellar vermis	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
3417671001000113	Isolierte Agenesie des Kleinhirnwurmes	de	Synonym (core metadata concept)	Active	Entire term case sensitive (core metadata concept)	SNOMED CT Switzerland NRC maintained Module

Expanded Value Set

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Component annotation with string value reference set (foundation metadata concept)

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