A 55yr old diabetic, hypertensive male with prior history of coronary stenting presented to the emergency department with complaints of abdominal pain and distension of duration 4 days. The abdomen was grossly distended with diffuse tenderness and guarding The Patient was evaluated resuscitated, investigated, and found to be Hollow viscous perforation with peritonitis. The Patient was subjected to emergency laparotomy. The surprise finding in the Operating room was mass arising from jejunum with perforation. The Resected specimen histopathology revealed GIST jejunum which was an unusual cause of acute abdomen.