Abstract
ITO, K. Histological Evaluation of Mixed Mesodermal Tumor of the Ovary. Tohoku J. Exp. Med., 1994, 172 (1), 51-57-Mixed mesodermal tumor (MMT) arising from the ovary is very rare, but we recently encountered two cases of this tumor. The tumors were examined histologically using hematoxylin-eosin, alcian blue, periodic acid-Schiff (PAS), and toluidine blue staining, as well as immunohistochemical staining for S-100 protein. The two patients were postmenopausal women aged 68 and 58 years, respectively. The carcinomatous region of the mixed tumor was endometrioid carcinoma in Patient 1 and serous cystadenocarcinoma in Patient 2, while the sarcomatous region was chondrosarcoma in both patients. The chondrosarcoma tissue was positive for PAS, alcian blue, toluidine blue, and S-100 protein.
