Journal of Pathology and Translational Medicine

Case Reports

Postirradiation Malignant Mixed Mesodermal Tumor of the Uterus: A case report.: Na Hye Myong, Kyung Ja Cho, Sang Yoon Park, Ja June Jang; Korean J Pathol. 1990;24(2):161-165.

Abstract PDF: A case of malignant mixed mesodermal tumor (MMMT) developed after radiation therapy for a uterine cervix cancer is described. The patient was a 62-year-old female at the time of diagnosis of stage Ib squamous cell carcinoma of the cervix and a total of 12,000 rads of x-ray was administered on the pelvic area. Five years later she manifested vaginal spotting and rectal pain. Endometial curettage and biopsy revealed carcinosarcoma. Radical hysterectomy was done and a 5x3x2 cm sized polypoid mass was noted in the uterine cavity. Microscopically, the tumor showed intimate admixture of adenocarcinomatous and sarcomatous areas. The sarcomatous stroma was composed of compactly arranged atypical spindle cells with frequent mitoses, merging into a loosely textured reticular areas and abundant amount of heterologous elements such as skeletal muscle and cartilage. The rhabdomyosarcomatous element was confirmed by PTAH staining and immunohistochemical staining for myoglobin and desmin. Multiple metastases to the liver, lung, and lymph nodes appeared within one year of total abdominal hysterectomy and bilateral salpingo-oophorectomy. In spite of palliative radiotherapy, she expired one month later.

Malignant Mixed Mesodermal Tumors of Ovary: 3 cases report.: Dong Won Kim, Tae Jung Kwon, Dong Wha Lee; Korean J Pathol. 1988;22(2):169-179.

Abstract PDF: Malignant mixed mesodermal tumor (MMMT) of the ovary is endometrioid tumor containing epithelial and mesenchymal components. The mesenchymal component may be homologous, in which case the term carcinosarcoma is often used, or heterologous, containing cartilage, striated muscle, osteoid, bone, or fat, or combination of these elements. MMMT usually afflicts the postmenopausal woman and occurs more often in the nulliparous female. The disease is usually advanced (stage III) when diagnosed. Cliniopathologic data were presented for 3 cases of MMMT of the ovary with review of literatures. Clinical history substantiated previous reports in postmenopausal women wit this tumor. Symptoms were the same as for ovarian malignancy in general. All the patients presented wit stage II disease, according to the International Federation fo Gynecology and Obstetrics (FIGO) classification. Two patients died of tumor 4 and 10 months after operation, respectively. One patient had been alive at 2 months after operation. None of 3 cases demonstrate evidence of endometriosis in the remaining ovaries. Microscopically, periodic acid-Schiff (PAS)-positive, diastase-resistant hyaline droplets were found frequently in undifferentiated mesenchymal stroma and epithelial structures. The clinical significance and origin of the hyaline droplets in MMMT should be further explored.

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