title: Gas cysts of intestine.
mesh_terms: D004381:Duodenal Ulcer / Q000150:complications; D006801:Humans; D008297:Male; D008875:Middle Aged; D011006:Pneumatosis Cystoides Intestinalis / Q000175:diagnosis / Q000209:etiology*; D011707:Pyloric Stenosis / Q000150:complications