A rare case of primary adenosquamous carcinoma arising from ovary

Primary adenosquamous carcinoma of ovary is extremely rare malignancy. We report a case of primary adenosquamous carcinoma of the ovary which has not been reported in Korea before. The case of a 32 year old woman, evaluated for palpable abdominal mass is presented. Ultrasonography, abdomino-pelvic MRI, PET-CT were suggestive of a malignant neoplastic process. Surgical debulking operation including total abdominal hysterectomy, bilateral salpingo-oophorectomy, bilateral pelvic lymph node dissection, para-aortic lymph node biopsy, total omentectomy, incidental appendectomy and low anterior resection of rectum were performed. Histopathology demonstrated primary adenosquamous carcinoma arising from the left ovary to the myometrium, serosa, rectal wall mass and omentum. The staging for ovarian tumor was consistent with FIGO stage IV. We present a case of this rare malignancy.