モリヤ　タクヤ   Takuya Moriya   森谷　卓也    所属   川崎医科大学  医学部 臨床医学　病理学    職種   教授
論文種別	原著
言語種別	英語
査読の有無	査読あり
表題	Primary endometrioid carcinoma of the uterosacral ligament arising from deep infiltrating endometriosis 6 years after bilateral salpingo-oophorectomy due to atypical proliferative endometrioid tumor of the ovary: a rare case report.
掲載誌名	正式名：World journal of surgical oncology 略　 称：World J Surg Oncol ISSNコード：14777819/14777819
掲載区分	国外
巻・号・頁	18(1),pp.329
著者・共著者	Ota Yoshiaki, Ota Kuniaki, Takahashi Toshifumi, Suzki Soichiro, Sano Rikiya, Ota Ikuko, Moriya Takuya, Shiota Mitsuru
発行年月	2020/12
概要	BACKGROUND:Endometriosis can potentially lead to the development of a malignant tumor. Most malignant tumors arising from the endometriosis originate from the ovarian endometrioma, whereas those arising from extragonadal lesions are rare. We report a rare case of endometrioid carcinoma that developed from deep infiltrating endometriosis in the uterosacral ligament 6 years after treatment for atypical proliferative endometrioid tumor of the ovary in a 48-year-old woman.CASE PRESENTATION:Six years ago, the patient underwent laparoscopic bilateral salpingo-oophorectomy for her right ovarian tumor with atypical proliferative (borderline) endometrioid tumor accompanied by ovarian endometrioma. The solid tumor in the cul-de-sac was detected during follow-up using magnetic resonance imaging. Positron emission tomography/computed tomography revealed an abnormal accumulation of 18F-fluorodeoxyglucose at the tumor site. Thus, tumor recurrence with borderline malignancy was suspected. The patient underwent diagnostic laparoscopy followed by hysterectomy and partial omentectomy. Retroperitoneal pelvic lymphadenectomy and para-aortic lymphadenectomy were also performed. The cul-de-sac tumor at the left uterosacral ligament was microscopically diagnosed as invasive endometrioid carcinoma arising from deep infiltrating endometriosis. The final diagnosis was primary stage IIB peritoneal carcinoma. The patient received six courses of monthly paclitaxel and carboplatin as adjuvant chemotherapy. The patient showed no evidence of recurrence for 2 years after the treatments.CONCLUSION:This study reports a rare case of metachronous endometriosis-related malignancy that developed 6 years after treatment for borderline ovarian tumor. If endometriosis lesions remain after bilateral salpingo-oophorectomy, the physician should keep the malignant nature of endometriosis in mind.
DOI	10.1186/s12957-020-02105-1
PMID	33308243