Background: Adenofibroma is a benign tumor composed histologically of epithelial
elements and mesenchymal stroma. Carcinosarcoma is a malignant neoplasm that contains elements
of carcinoma and sarcoma. Carcinosarcoma arising from adenofibroma of the uterus has
never been reported in the literature in English language.
Case Presentaion: We report a case of a 56-year-old woman who complained vaginal spotting
persisting for several months. We described here for the first time a case of malignant transformation
of uterine endometrial adenofibroma into carcinosarcoma that was depicted as a multilocular
cystic lesion with enhancing solid portions and stalk-like structure between the myometrium and