Tension Subdural Hygroma Following Resection of Posterior Fossa Tumour in a Child: A new clinico-radio-pathological entity

Abstract

Persistent hydrocephalus is common in child after resection of posterior fossa tumours. Occurrence of subdural hygroma, but is very rare, with only few cases reported. We report the rare case of a child who developed a tense subdural hygroma with stable hydrocephalus, in the early postoperative period, following posterior fossa tumour resection. We describe the distinctive clinical, radiological and pathological features associated with the development of a tense subdural hygroma.  We also discuss the management by cerebrospinal fluid diversion, which includes either a ventriculoperitoneal or subduroperitoneal shunt. This unique condition is distinguished from external hydrocephalus by features that are critical to the management strategy. 

Keywords: Child, Posterior fossa tumour, Postoperative period, Hydrocephalus, Subdural hygroma, Hygroma, External hydrocephalus.