Primary malignant mixed Mullerian tumor arising in the rectosigmoid.

Reports the very rare case of a primary malignant mixed Mullerian tumors (MMMT) arising in the rectosigmoid. Information on the case of a 79-year-old female patient presented with rectal bleeding and a history of weight loss diagnosed with polypoid ulcerating tumor of the rectosigmoid colon diffusely infiltrating the mesocolon; Histogenesis of MMMT.