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45163000: Congenital pontocerebellar hypoplasia (disorder)


Status: current, Sufficiently defined by necessary conditions definition status (core metadata concept). Date: 31-Jul 2014. Module: SNOMED CT core

Descriptions:

Id Description Lang Type Status Case? Module
75313012 Congenital pontocerebellar hypoplasia en Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT core
782372019 Congenital pontocerebellar hypoplasia (disorder) en Fully specified name Active Entire term case insensitive (core metadata concept) SNOMED CT core
4537491000241119 hypoplasie pontocérébelleuse congénitale fr Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT Switzerland NRC maintained Module


16 descendants. Search Descendants:

Expanded Value Set


Outbound Relationships Type Target Active Characteristic Refinability Group Values
Congenital pontocerebellar hypoplasia Is a Disorder of brain stem (disorder) false Inferred relationship Some
Congenital pontocerebellar hypoplasia Is a Dysgenesis of the cerebellum false Inferred relationship Some
Congenital pontocerebellar hypoplasia Is a Congenital anomaly of brain false Inferred relationship Some
Congenital pontocerebellar hypoplasia Finding site Brain structure false Inferred relationship Some 1
Congenital pontocerebellar hypoplasia Associated morphology Congenital hypoplasia false Inferred relationship Some 1
Congenital pontocerebellar hypoplasia Finding site Pontine structure false Inferred relationship Some 1
Congenital pontocerebellar hypoplasia Finding site Structure of central nervous system (body structure) false Inferred relationship Some 2
Congenital pontocerebellar hypoplasia Occurrence Congenital false Inferred relationship Some
Congenital pontocerebellar hypoplasia Associated morphology anomalie congénitale false Inferred relationship Some 1
Congenital pontocerebellar hypoplasia Associated morphology anomalie du développement false Inferred relationship Some 2
Congenital pontocerebellar hypoplasia Finding site Cerebellar structure true Inferred relationship Some 1
Congenital pontocerebellar hypoplasia Is a Congenital hypoplasia of part of brain false Inferred relationship Some
Congenital pontocerebellar hypoplasia Is a Congenital cerebellar hypoplasia true Inferred relationship Some
Congenital pontocerebellar hypoplasia Finding site Cerebellar structure false Inferred relationship Some 2
Congenital pontocerebellar hypoplasia Associated morphology anomalie congénitale du développement false Inferred relationship Some 2
Congenital pontocerebellar hypoplasia Finding site Pontine structure false Inferred relationship Some 1
Congenital pontocerebellar hypoplasia Finding site Cerebellar structure false Inferred relationship Some 1
Congenital pontocerebellar hypoplasia Associated morphology Congenital hypoplasia false Inferred relationship Some 1
Congenital pontocerebellar hypoplasia Occurrence Congenital true Inferred relationship Some 2
Congenital pontocerebellar hypoplasia Finding site Cerebellar structure false Inferred relationship Some 2
Congenital pontocerebellar hypoplasia Associated morphology Hypoplasia true Inferred relationship Some 2
Congenital pontocerebellar hypoplasia Finding site Pontine structure true Inferred relationship Some 2
Congenital pontocerebellar hypoplasia Occurrence Congenital false Inferred relationship Some 3
Congenital pontocerebellar hypoplasia Associated morphology Hypoplasia false Inferred relationship Some 3
Congenital pontocerebellar hypoplasia Finding site Pontine structure false Inferred relationship Some 3
Congenital pontocerebellar hypoplasia Is a Dysgenesis of the brainstem false Inferred relationship Some
Congenital pontocerebellar hypoplasia Associated morphology Hypoplasia true Inferred relationship Some 1
Congenital pontocerebellar hypoplasia Occurrence Congenital true Inferred relationship Some 1
Congenital pontocerebellar hypoplasia Pathological process (attribute) Pathological developmental process true Inferred relationship Some 1
Congenital pontocerebellar hypoplasia Pathological process (attribute) Pathological developmental process true Inferred relationship Some 2
Congenital pontocerebellar hypoplasia Is a Congenital hypoplasia of brainstem true Inferred relationship Some

Inbound Relationships Type Active Source Characteristic Refinability Group
A rare, genetic form of pontocerebellar hypoplasia characterized by pontocerebellar hypoplasia and progressive neocortical atrophy that manifests clinically with uncoordinated sucking and swallowing, and generalized clonus in the neonate. In early childhood, spasticity, chorea/dyskinesia, seizures and progressive microcephaly develop. Voluntary motor development is lacking. Is a True Congenital pontocerebellar hypoplasia Inferred relationship Some
Pontocerebellar hypoplasia type 7 (PCH7) is a novel very rare form of pontocerebellar hypoplasia with unknown etiology and poor prognosis reported in four patients and is characterized clinically during the neonatal period by hypotonia, no palpable gonads, micropenis and from infancy by progressive microcephaly, apneic episodes, poor feeding, seizures and regression of penis. MRI demonstrates a pontocerebellar hypoplasia. PCH7 is expressed as PCH with 46,XY disorder of sex development in individuals with XY karyotype, and may be expressed as PCH only in individuals with XX karyotype. Is a True Congenital pontocerebellar hypoplasia Inferred relationship Some
A rare, genetic form of pontocerebellar hypoplasia (PCH) characterized by neocortical and severe cerebral cortical atrophy associated with pontocerebellar hypoplasia with the pons and cerebellum equally affected. Clinically the disorder manifests at birth with hypotonia, clonus, epilepsy, impaired swallowing and from infancy by progressive microcephaly, spasticity and lactic acidosis. Is a True Congenital pontocerebellar hypoplasia Inferred relationship Some
Congenital pontocerebellar hypoplasia type 5 (disorder) Is a True Congenital pontocerebellar hypoplasia Inferred relationship Some
A severe, genetic form of pontocerebellar hypoplasia (PCH) characterised by delayed neocortical maturation with underdeveloped cerebral hemispheres and pontocerebellar hypoplasia and a severely affected vermis. Clinically, the disorder manifests with prenatal onset of polyhydramnios and contractures followed by hypertonia, severe clonus, primary hypoventilation leading to an early postnatal death. Is a True Congenital pontocerebellar hypoplasia Inferred relationship Some
A rare, genetic form of pontocerebellar hypoplasia (PCH) characterized by neocortical and pontocerebellar hypoplasia with pons and cerebellum equally affected and that clinically manifests with neonatal hypotonia and impaired swallowing followed by seizures, optic atrophy and short stature from infancy onward. Movement disorders, as seen in other forms of PCH, are absent. Is a True Congenital pontocerebellar hypoplasia Inferred relationship Some
A severe, genetic form of pontocerebellar hypoplasia (PCH) characterized by spinal cord anterior horn cell degeneration in addition to pontocerebellar hypoplasia. Clinically, patients manifest with a severe global development deficit that is evident early on from difficulties in feeding and swallowing. Is a True Congenital pontocerebellar hypoplasia Inferred relationship Some
Pontocerebellar hypoplasia type 8 (PCH8) is a novel very rare form of pontocerebellar hypoplasia characterized clinically by progressive microencephaly, feeding difficulties, severe developmental delay, although walking may be achieved, hypotonia often associated with increased muscle tone of lower extremities and deep tendon reflexes, joint deformities in the lower extremities, and occasionally complex seizures. PCH8 is caused by a loss-of-function mutation in the CHMP1A gene. MRI demonstrates a pontocerebellar hypoplasia with vermis and hemispheres equally affected and mild to severely reduced cerebral white matter volume with a fully formed very thin corpus callosum. Is a True Congenital pontocerebellar hypoplasia Inferred relationship Some
A rare, genetic, non-syndromic pontocerebellar hypoplasia characterized by progressive cerebellum and brainstem atrophy, corpus callosum hypo-/aplasia and progressive post-natal microcephaly. Patients typically present profound global developmental delay, spastic tetraparesis, seizures, cortical visual impairment and, on neuroimaging, abnormal brain morphology that includes pontocerebellar hypoplasia, figure of 8 midbrain appearance, and, more variably, interhemispheric cysts, ventriculomegaly and cerebral dysmyelination. Is a True Congenital pontocerebellar hypoplasia Inferred relationship Some
A rare, genetic, pontocerebellar hypoplasia subtype characterized by severe psychomotor developmental delay, progressive microcephaly, progressive spasticity, seizures, and brain abnormalities consisting of mild atrophy of the cerebellum, pons and corpus callosum and cortical atrophy with delayed myelination. Patients may present dysmorphic facial features (high arched eyebrows, prominent eyes, long palpebral fissures and eyelashes, broad nasal root, and hypoplastic alae nasi) and an axonal sensorimotor neuropathy. Is a True Congenital pontocerebellar hypoplasia Inferred relationship Some
A rare, genetic, non-syndromic cerebral malformation due to abnormal neuronal migration disease characterized by the association of cortical dysplasia and pontocerebellar hypoplasia, manifesting with global developmental delay, mild to severe intellectual disability, axial hypotonia, strabismus, nystagmus and, occasionally, optic nerve hypoplasia. Brain imaging reveals variable malformations, including frontally predominant microgyria, gyral disorganization and simplification, dysmorphic and hypertrophic basal ganglia, cerebellar vermis dysplasia, brainstem/corpus callosum hypoplasia, and/or olfactory bulbs agenesis. Is a True Congenital pontocerebellar hypoplasia Inferred relationship Some
A form of pontocerebellar hypoplasia characterized by microcephaly, severe global developmental delay and intellectual disability, dysmorphic facial features, cerebellar syndrome, and pontocerebellar hypoplasia on brain imaging. Behavioral abnormalities are frequently observed. Other reported manifestations include seizures, ocular anomalies, recurrent respiratory infections, and thin or absent corpus callosum, among others. Is a True Congenital pontocerebellar hypoplasia Inferred relationship Some
A lethal form of pontocerebellar hypoplasia with characteristics of prenatal onset of microcephaly, hypoplasia of the cerebellum, brainstem, and spinal cord, dysmorphic craniofacial features such as sloping forehead and micrognathia, and multiple contractures. Supratentorial atrophy has also been reported. Is a True Congenital pontocerebellar hypoplasia Inferred relationship Some
A form of pontocerebellar hypoplasia with characteristics of infantile onset of severe global developmental delay with absent speech, hypotonia, feeding problems, dysmorphic craniofacial features, and development of pontocerebellar hypoplasia on brain imaging later in childhood. Other structural abnormalities of the brain, which may already be apparent at an earlier stage, include small hippocampus, thin corpus callosum, periventricular white matter abnormalities, and Dandy-Walker malformation. Seizures, nystagmus, and cortical visual impairment have been reported in some cases. Is a True Congenital pontocerebellar hypoplasia Inferred relationship Some
A form of pontocerebellar hypoplasia characterised by severe, progressive microcephaly and severe global developmental delay apparent from birth, severe intellectual disability with lack of social interactions and absence of speech, and pontocerebellar hypoplasia and complete or partial agenesis of the corpus callosum on brain imaging. In addition, affected individuals often present hypotonia, spastic tetraplegia, and early-onset seizures. Chronic anaemia and thrombocytopenia have also been reported. Is a True Congenital pontocerebellar hypoplasia Inferred relationship Some
A rare multiple congenital anomalies/dysmorphic syndrome characterized by pontocerebellar hypoplasia, hypotonia and respiratory insufficiency. Cardiac anomalies (particularly hypertrophic cardiomyopathy), eye manifestations (congenital cataracts, corneal clouding), seizures and facial dysmorphism (including microcephaly, bitemporal narrowing, absence of eyelashes, short palpebral fissures, small and low-set ears, anteverted nares, microstomia, and micrognathia) are present in the majority of the patients. Additional findings such as hepatosplenomegaly, edema, micropenis/cryptorchidism, hypoglycemia, hypernatremia, increased triglycerides, elevated plasma lactate and decreased plasma cholesterol were reported. Brain imaging may reveal simplified/delayed cortical gyration, dilated ventricles, and periventricular or diffuse white matter abnormalities. It is mostly caused by biallelic deletions in the ATAD3 gene cluster (ATAD3A, ATAD3B and ATAD3C) or by point mutations in the ATAD3A gene. Even though the syndrome is mostly neonatally lethal, some patients, regardless of the type of the mutation/deletion they harbor, may have a less severe condition and may survive. Is a True Congenital pontocerebellar hypoplasia Inferred relationship Some

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