[A woman with an abdomen filled with gas].

A 73-year-old woman diagnosed with colon carcinoma underwent right hemicolectomy. Postoperatively, she developed hypotension, fever, diarrhea and haematemesis. Gastroduodenoscopy revealed ischemia of the gastric mucosa. A CT abdomen showed gas in the superior mesenteric vein and the portal system. Hepatic venous portal gas is a rare finding, often caused by bowel ischaemia.