Table 3 Radiological classification of cerebellar malformation by neuroimaging criteria
Cerebellar hypoplasia | Cerebellar dysplasia | |||
|---|---|---|---|---|
1. Focal cerebellar hypoplasia | 1. Focal cerebellar dysplasia | |||
Isolated vermian hypoplasia | Predominantly vermian hypoplasia DWM | Unilateral hemisphere hypoplasia | Predominantly vermian dysplasia a. Joubert syndrome b. Rhombencephalosynapsis | Predominantly hemispheric dysplasia a. Cerebellar cortical dysplasia b.(Lhermitte-Duclos-Cowden syndrome) |
2. Global cerebellar hypoplasia (e.g., congenital CMV infection) | 2. Generalized cerebellar dysplasia (e.g., congenital muscular dystrophies) | |||
3. Pontocerebellar hypoplasia (e.g., disorder of glycosylation) | ||||