[Clinicopathological features of carcinosarcoma in oromaxillofacial head and neck region].

PURPOSE: To analyze the clinical features, histopathological features, treatment and prognosis of carcinosarcoma in oromaxillofacial head and neck region.

METHODS: The clinical and histopathological data of 10 cases with carcinosarama were collected from database of Shanghai Ninth People's Hospital and further analyzed.

RESULTS: A total of 10 cases (8 males and 2 females) of carcinosarcoma were collected and analyzed. The age of patients ranged from 20 to 81 years (mean: 44, median:45.5). The tumor size was related to the primary site. The main clinical manifestations indicated rapid increase of foreign body sensation or mass, even feeling of pain. Pathologic examination confirmed the presence of carcinoma and sarcomatoid stroma. Carcinosarcoma had low incidence and was easily misdiagnosed. Diagnosis depended on pathologic examination especially immunohistochemistry. The prognosis was poor, and 5 year survival rate was 50%.

CONCLUSIONS: Diagnosis to carcinosarcoma depends on pathological examination after operation. Complete resection + free flap transplantation + postoperative radiotherapy and chemotherapy are conventional treatment.