RETROPERITONEAL NON PANCREATIC PSEUDOCYST: A DIAGNOSTIC ENIGMA

Abstract

A 53 year old gentleman presented with an abdominal lump associated with pain and loss of appetite of short duration (2 weeks). He was non alcoholic and denied history of pancreatitis. He was diagnosed to have a large retroperitoneal cyst on imaging and underwent endoscopic cystogastrostomy was done elsewhere. He was referred to us with fever and abdominal pain. Repeat imaging in our institution showed persistence of cyst in the retroperitoneum with cystogastrostomy stent in situ. Laparotomy and complete excision of cyst was done. Histopathological examination showed no epithelial lining of the cyst suggestive of a retroperitoneal non pancreatic pseudocyst. The patient had an uneventful recovery and remains asymptomatic on follow up.

Keywords: retroperitoneal cyst, pseudocyst