title: The significance of radiological pneumoperitoneum in the diagnosis of postoperative peritonitis.
mesh_terms: D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008875:Middle Aged; D010538:Peritonitis / Q000175:diagnosis / Q000000981:diagnostic imaging*; D011027:Pneumoperitoneum / Q000000981:diagnostic imaging*; D011184:Postoperative Period; D011859:Radiography