title: An unusual case of lesser peritoneal sac abscess.
mesh_terms: D004381:Duodenal Ulcer / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D008875:Middle Aged; D010439:Peptic Ulcer Perforation / Q000150:complications; D010532:Peritoneal Diseases / Q000000981:diagnostic imaging*; D011859:Radiography; D013369:Subphrenic Abscess / Q000000981:diagnostic imaging*