Global cerebellar hypoplasia

Discussion:

The normal shape of the cerebellum with global volume reduction is seen, consistent with global cerebellar hypoplasia; a type of congenital morphological cerebellar abnormality. An identical appearance can be seen in diffuse cerebellar atrophy, however, the long-standing history suggests that this is hypoplasia. Only long-term imaging showing stability over an extended time period can categorically distinguish between these two entities. 

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