[Abdominal pseudocyst in a patient with ventriculoperitoneal shunt. A case report].

Since 1905, the abdominal cavity has been used for absorption of cerebrospinal fluid in patients with hydrocephalus. Among complications in its use is formation of abdominal pseudocysts. We describe the case of a patient with hydrocephalus who developed an abdominal pseudocyst. The main complaint of the patient was abdominal pain and fever. During physical examination, a 15-cm abdominal tumor was detected. The patient underwent abdominal surgery for excision of the pseudocyst and peritoneal shunt was relocated to right atrium. Recovery was uneventful. Incidence of abdominal pseudocyst ranges from 1-4.5%. Principal symptoms are related with intracranial hypertension. The patient usually requires surgical exploration to resolve the illness, and in presence of infection the shunt should be changed.