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Diagnostic laparoscopy identifies a peritoneal adenomatoid-like mesothelioma masquerading as ovarian cancer: a case report
T. Okuda1,*, Y. Ogino1, S. Yamashita1, H. Ishii2, S. Kin2, A. Nagata3, M. Otsubo4, H. Kataoka4, J. Kitawaki4
1 Department of Obstetrics and Gynecology, Fukuchiyama City Hospital, Fukuchiyama City
2 Department of Surgery, Fukuchiyama City Hospital, Fukuchiyama City
3 Department of Pathology, Fukuchiyama City Hospital, Fukuchiyama City
4 Department of Obstetrics and Gynecology, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto (Japan)
Eur. J. Gynaecol. Oncol. 2014, 35(1), 91–94; https://doi.org/10.12892/ejgo24112014
Published: 10 February 2014
The authors report a rare case of peritoneal adenomatoid mesothelioma in a woman with no history of asbestos exposure. A 61-yearold 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 rightsalpingo-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.