title: Pneumopericardium following perianal fistula repair and sigmoidoscopy.
authors.forename: X
authors.initials: X
authors.lastname: Holmwood
authors.forename: S C-Y
authors.initials: SC
authors.lastname: Tan
authors.forename: C J
authors.initials: CJ
authors.lastname: McKenna
mesh_terms: D000328:Adult; D006801:Humans; D008297:Male; D011026:Pneumopericardium / Q000000981:diagnostic imaging / Q000209:etiology*; D011183:Postoperative Complications / Q000209:etiology*; D011859:Radiography; D012003:Rectal Fistula / Q000601:surgery*; D012812:Sigmoidoscopy / Q000009:adverse effects*