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Features include common findings: Seizure, Occipital encephalocele, Polymicrogyria, and Abnormality of neuronal migration and others; and sometimes findings: Abnormal forehead morphology, Partial agenesis of the corpus callosum, Prominent glabella, and Visual hallucination and others.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 7 | Seizure, Focal aware seizure, Focal-onset seizure |
Phenotype severity distribution: 12 common features.
No clinical trials have been registered for subependymal nodular heterotopia.
5 publications have been identified in PubMed for subependymal nodular heterotopia. Research spans Case Report / Case Series (80%) and Review / Meta-Analysis (20%).
Song J (2026). [PMID: 42067951](https://pubmed.ncbi.nlm.nih.gov/42067951/). *Acta Epileptol*. [Review / Meta-Analysis]
V P (2025). [PMID: 39726909](https://pubmed.ncbi.nlm.nih.gov/39726909/). *Radiol Case Rep*. [Case Report / Case Series]
Brambila-Tapia AJL (2025). [PMID: 40869917](https://pubmed.ncbi.nlm.nih.gov/40869917/). *Genes (Basel)*. [Case Report / Case Series]
Dhakal N (2025). [PMID: 39897746](https://pubmed.ncbi.nlm.nih.gov/39897746/). *Radiol Case Rep*. [Case Report / Case Series]
Fernandes A (2024). [PMID: 39776704](https://pubmed.ncbi.nlm.nih.gov/39776704/). *Cureus*. [Case Report / Case Series]
Data assembled from 4 of 12 sources · Last updated Sep 18, 2026, 2:55 AM UTC
European rare disease database
Genetic and Rare Diseases Info Center
Bones and joints |
2 |
Abnormal bone structure (abnormal bone structure), Abnormal ethmoid bone morphology |
Arms and legs | 1 | Limb myoclonus |