Uterine Carcinosarcoma Arising From an Endometrial Polyp

Abstract

Uterine carcinosarcomas are uncommon malignant tumors, characterized histologically by the presence of both malignant glandular and sarcomatous components. 1 They are also called malignant mixed mullerian tumors and usually appear in postmenopausal women.' Most of them have a highly aggressive behavior, and their prognosis used to be very poor, even in stage I. 2,3 Traditionally, these tumors have been considered a subtype of uterine sarcoma; however, recent data have shown that most carcinosarcomas have a monoclonal origin. 4 Specific preoperative diagnosis is often very difficult because, in most instances, an endometrial biopsy specimen can indicate either carcinoma or sarcoma. 2 We report a case of uterine carcinosarcoma arising from an endometrial polyp in a postmenopausal woman evaluated by 3-dimensional (3D) power Doppler angiography and positron emission tomography/computed tomography (PET/CT).