A case of ovarian serous cystadenofibroma with scattered lesions in pelvic cavity, like malignant disseminations.

Ovarian serous cystadenofibroma is a relatively rare subtype of serous cystadenoma classified as ovarian benign epithelial tumor. We report a rare case of ovarian serous cystadenofibroma with scattered lesions in pelvic cavity, like malignant disseminations. The patient was 22 years old, gravida 0, para 0. In the laparoscopic surgery, numerous hard yellowish-white solid masses of various sizes were present in the bilateral ovaries. Grossly similar masses were scattered in the fimbria of the fallopian tubes, peritoneum, and great omentum. Because the intraoperative rapid histological diagnosis was benign tumor, surgery was completed for only tumor excision. Postoperative histopathological diagnosis is serous cystadenofibroma. Similar pathological findings were noted in the scattered lesions in the peritoneum and great omentum. No malignant or borderline malignant finding was observed. Because of a benign disease, careful treatment taking fertility preservation into consideration is necessary, especially for young patients.