The author observed 48 cases diagnosed as oral malignancies of the patients who had visited to the Infirmary of Dental College of Seoul National University from 1973 to July 1976. The following results were obtained. 1. 5th decades age group showed the highest incidence and there was hardly difference in sex. 2. From the histopathological view point, most of cases were squamous cell carcinomas. 3. Most of cases were considerably in advance and showed the bony destruction not only of primary site, but of surrounding structures.
Park, Tae Won 
- Department of Radiology, College of Dentistry, Seoul National University, Seoul (Korea, Republic of)