Portal vein gas.
D000328:Adult; D001464:Barium; D002908:Chronic Disease; D003093:Colitis, Ulcerative / Q000150:complications*; D004618:Embolism, Air / Q000209:etiology*; D004733:Enema / Q000009:adverse effects*; D006801:Humans; D008297:Male; D011169:Portal Vein; D012812:Sigmoidoscopy / Q000009:adverse effects
D001464:Barium