Pneumatosis intestinalis and mesenteric venous gas - a manifestation of bacterascites in a patient with cirrhosis.

We herein report a patient with decompensated cirrhosis secondary to autoimmune hepatitis, who presented with pneumatosis intestinalis (PI) and portal venous gas. Mesenteric ischemia has been recognized as a common and life-threatening cause of PI which portends a grave prognosis. The patient was found to have bacterascites and recovered after appropriate antibiotic therapy. Spontaneous bacterial peritonitis/bacterascites with gas-forming organisms manifesting as PI has not been previously reported.