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Washington University Experience | DEVELOPMENTAL MALFORMATIONS | Granule cell Aplasia | 1A1 Aplasia, Granule Cell (Case 1) H&E whole mount 2

Granule cell aplasia results in loss of cerebellar granule cells producing marked cerebellar atrophy. Its cause is unknown but some of the reported cases appear to have a familial component. ---- In this example of granule cell aplasia there is a mild loss in neurons of the basis pontis. However, the cerebellar folia are pale and shrunken involving both the vermis and hemispheres (H&E).

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