title: Pneumoperitoneum caused by perforation of pyometra associated with a lost intrauterine device and perforated malignancy of the sigmoid colon.
authors.forename: Pi-Hua
authors.initials: PH
authors.lastname: Chen
authors.lastname: Hsien-Liu
authors.forename: Su-Long
authors.initials: SL
authors.lastname: Lee
authors.forename: Chih-Yang
authors.initials: CY
authors.lastname: Chang
authors.forename: Chi-Chang
authors.initials: CC
authors.lastname: Chang
mesh_terms: D000230:Adenocarcinoma / Q000150:complications*; D000368:Aged; D012809:Colon, Sigmoid / Q000293:injuries; D005260:Female; D006801:Humans; D058736:Intrauterine Device Migration; D011027:Pneumoperitoneum / Q000209:etiology*; D055112:Pyometra / Q000209:etiology*; D012811:Sigmoid Neoplasms / Q000150:complications*