{"paper_id":"7b0cf5fd-35cd-4d64-87a9-539cf320e196","body_text":"Abstract\nWe present an unusual case of clear cell carcinoma arising from endometriosis in a 43-year-old woman. During laparotomy, a right adnexal tumor was found to be a sigmoidal subserosal tumor. Concomitant abnormal findings were endometriosis externa and enlarged ovaries. Intraoperative cytology suggested an adenocarcinoma; however, because of the unusual nature of the tumor and because the patient had not been fully informed about colostomy, further surgery was postponed. During the postoperative follow-up, the tumor grew and repeat aspiration cytology also suggested an adenocarcinoma. The patient again underwent laparotomy, and a Miles operation, total abdominal hysterectomy, bilateral salpingo-oophorectomy, regional lymphadenectomy and descending colostomy were performed.\nThe patient completed two courses of multidrug chemotherapy (cisplatin, 70 mg/m2; epirubicin, 50 mg/m2; cyclophosphamide, 500 mg/m2) postoperatively, and she remains without recurrence 7 months after the second laparotomy.\nSimilar content being viewed by others\nAuthor information\nAuthors and Affiliations\nAdditional information\nReceived: July 22, 1998 / Accepted: April 12, 1999\nAbout this article\nCite this article\nShimamoto, T., Nagai, Y., Hoshino, Y. et al. Clear cell carcinoma arising from sigmoidal subserosal endometriosis. Int J Clin Oncol 4, 311–314 (1999). https://doi.org/10.1007/s101470050075\nIssue date:\nDOI: https://doi.org/10.1007/s101470050075","source_license":"CC0","license_restricted":false}