title: Intramural müllerian adenosarcoma of the uterus with adenomyosis.
abstract: We studied a case of intramural müllerian adenosarcoma of the uterus in a 51-year-old woman. The tumor measured 4 cm in diameter, was located in the lateral wall of the uterine body, and was accompanied by adenomyosis. The tumor was composed of glands with no epithelial cell atypia and a sarcomatous component evidenced by cell pleomorphism and a high mitotic count. The ratios of mitotic cells to glandular cells in the tumor, in the overlying endometrium in proliferative phase, and in the adenomyomatous tissue, were 5:10,000, 20:10,000, and less than 1:10,000, respectively. These observations seem to indicate that the glandular component of the tumor is a benign, neoplastic part, and the present tumor developed in a preexisting endometriotic focus.
mesh_terms: D004715:Endometriosis / Q000473:pathology*; D005260:Female; D006801:Humans; D008875:Middle Aged; D008938:Mitosis; D009373:Neoplasms, Germ Cell and Embryonal / Q000473:pathology*; D014594:Uterine Neoplasms / Q000473:pathology*; D009396:Wilms Tumor / Q000473:pathology*