1172593006: Early-onset progressive diffuse brain atrophy, microcephaly, muscle weakness, optic atrophy syndrome (disorder)

SNOMED CT Concept\Clinical finding (finding)\...

\Head finding (finding)\Finding of brain\Seizure\Seizure disorder\A disease of the brain characterized by an enduring predisposition to generate epileptic seizures.\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Head finding (finding)\Finding of brain\Disorder of brain (disorder)\Seizure disorder\A disease of the brain characterized by an enduring predisposition to generate epileptic seizures.\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Head finding (finding)\Finding of brain\Disorder of brain (disorder)\Degenerative brain disorder\Global brain atrophy (disorder)\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Head finding (finding)\Finding of brain\Disorder of brain (disorder)\Degenerative brain disorder\Cerebral degeneration (disorder)\Cerebral atrophy\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Head finding (finding)\Disorder of head (disorder)\Disorder of brain (disorder)\Seizure disorder\A disease of the brain characterized by an enduring predisposition to generate epileptic seizures.\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Head finding (finding)\Disorder of head (disorder)\Disorder of brain (disorder)\Degenerative brain disorder\Global brain atrophy (disorder)\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Head finding (finding)\Disorder of head (disorder)\Disorder of brain (disorder)\Degenerative brain disorder\Cerebral degeneration (disorder)\Cerebral atrophy\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.

\Central nervous system finding\Finding of brain\Seizure\Seizure disorder\A disease of the brain characterized by an enduring predisposition to generate epileptic seizures.\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Central nervous system finding\Finding of brain\Disorder of brain (disorder)\Seizure disorder\A disease of the brain characterized by an enduring predisposition to generate epileptic seizures.\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Central nervous system finding\Finding of brain\Disorder of brain (disorder)\Degenerative brain disorder\Global brain atrophy (disorder)\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Central nervous system finding\Finding of brain\Disorder of brain (disorder)\Degenerative brain disorder\Cerebral degeneration (disorder)\Cerebral atrophy\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Central nervous system finding\Second cranial nerve finding (finding)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Central nervous system finding\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Seizure disorder\A disease of the brain characterized by an enduring predisposition to generate epileptic seizures.\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Central nervous system finding\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Degenerative brain disorder\Global brain atrophy (disorder)\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Central nervous system finding\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Degenerative brain disorder\Cerebral degeneration (disorder)\Cerebral atrophy\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Central nervous system finding\Disorder of the central nervous system (disorder)\Degenerative disease of the central nervous system\Hereditary degenerative disease of central nervous system\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Central nervous system finding\Disorder of the central nervous system (disorder)\Degenerative disease of the central nervous system\Optic atrophy\Primary optic atrophy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Central nervous system finding\Disorder of the central nervous system (disorder)\Degenerative disease of the central nervous system\Degenerative brain disorder\Global brain atrophy (disorder)\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Central nervous system finding\Disorder of the central nervous system (disorder)\Degenerative disease of the central nervous system\Degenerative brain disorder\Cerebral degeneration (disorder)\Cerebral atrophy\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Central nervous system finding\Disorder of the central nervous system (disorder)\Disorder of visual pathways\Disorder of optic nerve\Inherited optic neuropathy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Central nervous system finding\Disorder of the central nervous system (disorder)\Disorder of visual pathways\Disorder of optic nerve\Optic atrophy\Primary optic atrophy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.

\Eye / vision finding\Visual system disorder (disorder)\Hereditary disorder of the visual system\Inherited optic neuropathy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Eye / vision finding\Visual system disorder (disorder)\Disorder of visual pathways\Disorder of optic nerve\Inherited optic neuropathy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Eye / vision finding\Visual system disorder (disorder)\Disorder of visual pathways\Disorder of optic nerve\Optic atrophy\Primary optic atrophy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Eye / vision finding\Second cranial nerve finding (finding)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.

\Neurological finding\Seizure related finding\Seizure\Seizure disorder\A disease of the brain characterized by an enduring predisposition to generate epileptic seizures.\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Neurological finding\Cranial nerve finding\Second cranial nerve finding (finding)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.

\Disease\Genetic disease\Hereditary disease\Hereditary disorder by system\Hereditary disorder of the visual system\Inherited optic neuropathy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Genetic disease\Hereditary disease\Hereditary disorder by system\Hereditary disorder of nervous system\Inherited optic neuropathy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Genetic disease\Hereditary disease\Hereditary disorder by system\Hereditary disorder of nervous system\Hereditary degenerative disease of central nervous system\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Genetic disease\Hereditary disease\Developmental hereditary disorder\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Genetic disease\Hereditary disease\Autosomal hereditary disorder\Autosomal recessive hereditary disorder\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Degenerative disorder\Degenerative disease of the central nervous system\Hereditary degenerative disease of central nervous system\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Degenerative disorder\Degenerative disease of the central nervous system\Optic atrophy\Primary optic atrophy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Degenerative disorder\Degenerative disease of the central nervous system\Degenerative brain disorder\Global brain atrophy (disorder)\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Degenerative disorder\Degenerative disease of the central nervous system\Degenerative brain disorder\Cerebral degeneration (disorder)\Cerebral atrophy\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Hereditary disorder by system\Hereditary disorder of the visual system\Inherited optic neuropathy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Hereditary disorder by system\Hereditary disorder of nervous system\Inherited optic neuropathy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Hereditary disorder by system\Hereditary disorder of nervous system\Hereditary degenerative disease of central nervous system\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Visual system disorder (disorder)\Hereditary disorder of the visual system\Inherited optic neuropathy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Visual system disorder (disorder)\Disorder of visual pathways\Disorder of optic nerve\Inherited optic neuropathy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Visual system disorder (disorder)\Disorder of visual pathways\Disorder of optic nerve\Optic atrophy\Primary optic atrophy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Disorder of nervous system (disorder)\Neuropathy (disorder)\Cranial nerve disorder\Disorder of optic nerve\Inherited optic neuropathy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Disorder of nervous system (disorder)\Neuropathy (disorder)\Cranial nerve disorder\Disorder of optic nerve\Optic atrophy\Primary optic atrophy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Disorder of nervous system (disorder)\Hereditary disorder of nervous system\Inherited optic neuropathy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Disorder of nervous system (disorder)\Hereditary disorder of nervous system\Hereditary degenerative disease of central nervous system\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Seizure disorder\A disease of the brain characterized by an enduring predisposition to generate epileptic seizures.\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Degenerative brain disorder\Global brain atrophy (disorder)\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Disorder of brain (disorder)\Degenerative brain disorder\Cerebral degeneration (disorder)\Cerebral atrophy\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Degenerative disease of the central nervous system\Hereditary degenerative disease of central nervous system\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Degenerative disease of the central nervous system\Optic atrophy\Primary optic atrophy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Degenerative disease of the central nervous system\Degenerative brain disorder\Global brain atrophy (disorder)\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Degenerative disease of the central nervous system\Degenerative brain disorder\Cerebral degeneration (disorder)\Cerebral atrophy\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Disorder of visual pathways\Disorder of optic nerve\Inherited optic neuropathy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of body system\Disorder of nervous system (disorder)\Disorder of the central nervous system (disorder)\Disorder of visual pathways\Disorder of optic nerve\Optic atrophy\Primary optic atrophy\Hereditary optic atrophy\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of head (disorder)\Disorder of brain (disorder)\Seizure disorder\A disease of the brain characterized by an enduring predisposition to generate epileptic seizures.\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of head (disorder)\Disorder of brain (disorder)\Degenerative brain disorder\Global brain atrophy (disorder)\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Disorder of head (disorder)\Disorder of brain (disorder)\Degenerative brain disorder\Cerebral degeneration (disorder)\Cerebral atrophy\Diffuse atrophy of cerebrum (disorder)\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Developmental disorder\Developmental hereditary disorder\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.
\Disease\Developmental disorder\Developmental delay\A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.

Status: current, Not sufficiently defined by necessary conditions definition status (core metadata concept). Date: 30-Sep 2021. Module: SNOMED CT core

Descriptions:

Id Description Lang Type Status Case? Module

5399338012 A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies. en Definition Active Entire term case sensitive (core metadata concept) SNOMED CT core

5399339016 A rare, severe early-onset neurodegenerative encephalopathy characterised mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies. en Definition Active Entire term case sensitive (core metadata concept) SNOMED CT core

4634518013 Early-onset progressive diffuse brain atrophy, microcephaly, muscle weakness, optic atrophy syndrome (disorder) en Fully specified name Active Entire term case insensitive (core metadata concept) SNOMED CT core

4634519017 Early-onset progressive diffuse brain atrophy, microcephaly, muscle weakness, optic atrophy syndrome en Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT core

6107521000241110 syndrome d'atrophie cérébrale diffuse à début précoce, microcéphalie, faiblesse musculaire et atrophie optique fr Synonym (core metadata concept) Active Entire term case insensitive (core metadata concept) SNOMED CT Switzerland NRC maintained Module

3453611001000118 Früh beginnende progressive diffuse Gehirnatrophie-Mikrozephalie-Muskelschwäche-Optikusatrophie-Syndrom de Synonym (core metadata concept) Active Entire term case sensitive (core metadata concept) SNOMED CT Switzerland NRC maintained Module

Expanded Value Set

Outbound Relationships	Type	Target	Active	Characteristic	Refinability	Group	Values
A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.	Is a	Second cranial nerve finding (finding)	true	Inferred relationship	Some
A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.	Is a	Developmental delay	true	Inferred relationship	Some
A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.	Is a	Hereditary optic atrophy	true	Inferred relationship	Some
A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.	Is a	Cerebral atrophy	false	Inferred relationship	Some
A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.	Is a	Developmental hereditary disorder	true	Inferred relationship	Some
A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.	Is a	A disease of the brain characterized by an enduring predisposition to generate epileptic seizures.	true	Inferred relationship	Some
A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.	Is a	Autosomal recessive hereditary disorder	true	Inferred relationship	Some
A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.	Pathological process (attribute)	Pathological developmental process	true	Inferred relationship	Some	3
A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.	Finding site	The cerebrum is the regional structure of the brain, which is the adult equivalent of the forebrain or prosencephalon. It is constituted by the structural derivatives of the telencephalon and diencephalon including the cerebral hemispheres, epithalamus, thalamus, hypothalamus, lateral ventricles and third ventricle. This definition is harmonious with the Federation of Association of Anatomist Second Edition (2019) Part V Terminologia Anatomica.	true	Inferred relationship	Some	1
A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.	Finding site	Optic nerve structure	true	Inferred relationship	Some	2
A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.	Associated morphology	Primary atrophy (morphologic abnormality)	true	Inferred relationship	Some	2
A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.	Associated morphology	Diffuse atrophy	true	Inferred relationship	Some	1
A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.	Is a	Diffuse atrophy of cerebrum (disorder)	true	Inferred relationship	Some

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Id	Description	Lang	Type	Status	Case?	Module
5399338012	A rare, severe early-onset neurodegenerative encephalopathy characterized mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.	en	Definition	Active	Entire term case sensitive (core metadata concept)	SNOMED CT core
5399339016	A rare, severe early-onset neurodegenerative encephalopathy characterised mainly by developmental delay (DD) / developmental regression (DR), epilepsy, cortical atrophy, secondary hypomyelination and thin corpus callosum. Additional features include secondary microcephaly, hypotonia, spasticity, optic atrophy and skeletal anomalies.	en	Definition	Active	Entire term case sensitive (core metadata concept)	SNOMED CT core
4634518013	Early-onset progressive diffuse brain atrophy, microcephaly, muscle weakness, optic atrophy syndrome (disorder)	en	Fully specified name	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
4634519017	Early-onset progressive diffuse brain atrophy, microcephaly, muscle weakness, optic atrophy syndrome	en	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT core
6107521000241110	syndrome d'atrophie cérébrale diffuse à début précoce, microcéphalie, faiblesse musculaire et atrophie optique	fr	Synonym (core metadata concept)	Active	Entire term case insensitive (core metadata concept)	SNOMED CT Switzerland NRC maintained Module
3453611001000118	Früh beginnende progressive diffuse Gehirnatrophie-Mikrozephalie-Muskelschwäche-Optikusatrophie-Syndrom	de	Synonym (core metadata concept)	Active	Entire term case sensitive (core metadata concept)	SNOMED CT Switzerland NRC maintained Module