Mesenteric Mesothelial Cyst Presented as Acute Abdominal Pain

Mesenteric cysts are rare intra-abdominal tumors. The preoperative diagnosis of mesenteric cysts is challenging due to its rarity. We present a case of 65 -years-old female with history of progressive increasing abdominal discomfort and swelling she presented with sudden acute abdominal pain of 5 days. Physical examination revealed a mildly tender, palpable abdominal swelling occupying right iliac fossa measuring 10x8x3 cm. Plain and contrast computed tomography scan abdomen and pelvis showed an intra-abdominal well defined, thin walled cystic lesion in right iliac fossa and extending upto right hypochondriac region. It showed multiple thin internal septae and low level mobile internal echoes. On radio imaging suggestive of a mesenteric cyst was given and histopathological correlation was advised. The exploratory laprotomy with complete surgical excisions of cystic mass was done. The histopathological diagnosis of benign mesothelial cyst of mesentry was given. We are presenting rare case of simple mesenteric cyst for its clinical, radio imaging and histomorphological features.