Role of protein content in CSF ascites following ventriculoperitoneal shunting. Case report.

The case is reported of an 11-year-old girl with a recurrent craniopharyngioma who developed massive ascites following a ventriculoperitoneal (VP) shunt procedure for hydrocephalus, associated with an elevated cerebrospinal fluid (CSF) protein level. The ascites resolved after removal of the shunt. The CSF protein returned to normal levels following excision of the recurrent craniopharyngioma, and ascites did not recur after a second VP shunt was inserted for recurrent hydrocephalus. In this case, elevated CSF protein is believed to have been responsible for ascites developing after VP shunting. There was no recurrence of ascites after the peritoneal cavity was again used for shunting, at which time the protein had returned to normal values. Twelve previous cases of ascites complicating VP shunting are reviewed and the etiology of the condition is discussed.