Case of Mesenteric Cyst in Which Resection Was Performed Under Suspicion of an Infection

Abstract

A 26-year-old man visited our hospital complaining of abdominal pain of sudden onset and fever. Laboratory data showed significant elevation of the levels of inflammatory markers. CT showed a mesenteric cyst measuring 50 mm in diameter, and infection was suspected as the cause. Small bowel resection was performed in addition to cystectomy. Histopathologic examination revealed a mesenteric pseudocyst. Adult mesenteric cyst is relatively rare and usually remains occult. However, sometimes it manifests with either chronic abdominal symptoms because of an increase in size, or acute abdominal pain because of infection.