title: Radiology quiz #17. Pneumoperitoneum.
authors.affiliation: Diagnostic Imaging Department, Nevada Regional Medical Center.
authors.forename: R A
authors.initials: RA
authors.lastname: Francis
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D011027:Pneumoperitoneum / Q000000981:diagnostic imaging*; D011859:Radiography