• 1 January 1976
    • journal article
    • research article
    • Vol. 2  (3) , 167-176
Abstract
Children (8) with hydrocephalus showed signs of posterior fossa tonsillar impaction despite arrest of the hydrocephalus and patency of their CSF shunts. Contrast studies performed because of their clinical deterioration demonstrated cerebellar tonsillar herniation, and at posterior fossa decompression, this was confirmed in all cases. Improvement followed decompression. The pathogenesis of a state of cephalocranial disproportion following successful treatment of hydrocephalus resulting in symptomatic tonsillar herniation, is discussed.

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