Portal venous gas after colonoscopy in two patients with Crohn's disease

摘要

Portal venous gas (PVG) seen on abdominal imaging is often associated with serious clinical entities that have high morbidity and mortality.1 Noniatrogenic causes of PVG include mesenteric ischemia and infarction, trauma, and inflammatory bowel disease.1 Iatrogenic causes include biliary gas after ERCP with sphincterotomy, liver biopsy, and hepatic artery embolization. We present 2 cases of PVG after colonoscopy in 2 patients with Crohn's disease and colonic strictures.