Gastric pneumatosis and portal venous gas in superior mesenteric artery syndrome.

Superior mesenteric artery (SMA) syndrome is a condition where compression of the duodenum between the root of the SMA and the aorta results in intermittent obstruction of the third part of duodenum. Portal venous gas associated with nonischemic bowel is uncommon. We report an 81-year-old man who developed gastric pneumatosis and hepatoportal venous gas due to SMA syndrome, which healed without any sequelae.