[A case of clear cell adenocarcinoma of the female urethra].

Clear cell adenocarcinoma of the female urethra is a rare disease. We herein report the 23rd case of clear cell adenocarcinoma of the female urethra in Japan. A 75-year-old female visited our hospital because of pollakisuria. Pelvic CT revealed a 2.2 cm tumor surrounding the entire circumference of the urethra with pelvic lymph node metastases. Chest CT revealed mediastinal lymph node metastases. She underwent anterior pelvic exenteration and ileal conduit urinary diversion. Pathological diagnosis of the tumor was clear cell adenocarcinoma. She has been alive 11 months after surgery in spite of enlarged mediastinal lymph node metastases.