Abstract
We present a case of endometrial cancer detected incidentally after a total laparoscopic hysterectomy for adenomyosis. A 45-year-old woman was referred to our department with the chief complaint of hypermenorrhea, abnormal genital bleeding, and anemia. Cytological and histological examinations of the uterus showed no evidence of malignancy. Magnetic resonance imaging and pelvic ultrasonography revealed an indistinct tumor in the posterior wall of the uterus. We made a diagnosis of adenomyosis and performed total laparoscopic hysterectomy with bilateral salpingo-oophorectomy. The histopathological findings revealed that it was an endometrioid adenocarcinoma G2. We additionally performed computed tomography (CT)/positron emission tomography CT and found swelling of a para-aortic lymph node. Therefore, she underwent a pelvic/para-aortic lymphadenectomy via an abdominal operation 61 days after the initial operation. The cancer had spread to 11 lymph nodes. Then, she received adjuvant chemotherapy. We found no evidence of recurrence 1 year after the second surgery.