title: Radiological case of the month.
mesh_terms: D002764:Cholecystitis / Q000000981:diagnostic imaging*; D003920:Diabetes Mellitus / Q000000981:diagnostic imaging*; D003937:Diagnosis, Differential; D004646:Emphysema / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography