unilateral hemispheric polymicrogyria
MONDO:0015099Mondo
Findings
No curated finding names unilateral hemispheric polymicrogyria yet. Everything below is reference data from Mondo, HPO and GenCC, not evidence about what affects it.
Features
14 features
What the disease is reported to present with, and how often among people who have it — never how often a feature means the disease. HPO, annotations 2026-09-02.
- Cerebral hypoplasiaHPOHP:0006872
- Very frequent (80% to 99% of cases)
- Cortical dysplasiaHPOHP:0002539
- Very frequent (80% to 99% of cases)
- Focal-onset seizureHPOHP:0007359
- Very frequent (80% to 99% of cases)
- HemiparesisHPOHP:0001269
- Very frequent (80% to 99% of cases)
- Intellectual disabilityHPOHP:0001249
- Very frequent (80% to 99% of cases)
- Lateral ventricle dilatationHPOHP:0006956
- Very frequent (80% to 99% of cases)
- Neurodevelopmental delayHPOHP:0012758
- Very frequent (80% to 99% of cases)
- Thick cerebral cortexHPOHP:0006891
- Very frequent (80% to 99% of cases)
- Bilateral tonic-clonic seizureHPOHP:0002069
- Frequent (30% to 79% of cases)
- EEG with focal epileptiform dischargesHPOHP:0011185
- Frequent (30% to 79% of cases)
- Widened subarachnoid spaceHPOHP:0012704
- Frequent (30% to 79% of cases)
- Focal atonic seizureHPOHP:0020220
- Occasional (5% to 29% of cases)
Show the remaining 2
- Generalized myoclonic seizureHPOHP:0002123
- Occasional (5% to 29% of cases)
- Infantile spasmsHPOHP:0012469
- Occasional (5% to 29% of cases)
Where it sits
- A kind of