title: Case of the season: an unusual plain abdominal film opacity.
authors.affiliation: Department of Radiology, Central Middlesex Hospital, London, England.
authors.forename: D A
authors.initials: DA
authors.lastname: Scullion
authors.forename: P J
authors.initials: PJ
authors.lastname: Shorvon
mesh_terms: D015746:Abdominal Pain / Q000000981:diagnostic imaging / Q000209:etiology*; D002119:Calcium Carbonate; D004240:Diverticulum / Q000000981:diagnostic imaging*; D006801:Humans; D007670:Kidney Calices / Q000000981:diagnostic imaging*; D008297:Male; D008875:Middle Aged; D011859:Radiography
chemical_list: D002119:Calcium Carbonate