title: Diagnostic laparoscopy identifies a peritoneal adenomatoid-like mesothelioma masquerading as ovarian cancer: a case report.
abstract: The authors report a rare case of peritoneal adenomatoid mesothelioma in a woman with no history of asbestos exposure. A 61-year-old woman was originally suspected of having a bilateral ovarian tumor based on chest radiography and magnetic resonance imaging (MRI). Upon referral to our hospital, the presence of two solid masses was confirmed by enhanced MRI and 18F-fluorodeoxyglucose positron-emission tomography/computed tomography (18F-FDG-PET/CT). Physical examination was normal, as were serum concentrations of the tumor markers CA 19-9, CA 125, and CEA. Laparoscopic surgery showed a right ovarian tumor and laparoscopic right salpingo-oophorectomy and adhesiotomy were performed. Two months later, the patient underwent laparoscopic segmental resection of the sigmoid colon, with histological analysis identifying an adenomatoid-like tumor. The final diagnosis was peritoneal adenomatoid-like mesothelioma with invasion of the right ovary. This case report demonstrates that imaging techniques must be coupled with laparoscopic surgery for an accurate diagnosis of peritoneal mesothelioma.
authors.forename: T
authors.initials: T
authors.lastname: Okuda
authors.forename: Y
authors.initials: Y
authors.lastname: Ogino
authors.forename: S
authors.initials: S
authors.lastname: Yamashita
authors.forename: H
authors.initials: H
authors.lastname: Ishii
authors.forename: S
authors.initials: S
authors.lastname: Kin
authors.forename: A
authors.initials: A
authors.lastname: Nagata
authors.forename: M
authors.initials: M
authors.lastname: Otsubo
authors.forename: H
authors.initials: H
authors.lastname: Kataoka
authors.forename: J
authors.initials: J
authors.lastname: Kitawaki
mesh_terms: D018254:Adenomatoid Tumor / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D010535:Laparoscopy; D008654:Mesothelioma / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D010534:Peritoneal Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery