Carcinomas of intraoral salivary glands.

Of 44 intraoral salivary gland tumours received by the Department of Pathology, Dental Faculty, University of Oslo over the last 20 years, 21 (approx. 48%) were classified as carcinomas. Of these, the adenocarcinomas constituted the largest group, but because some of them bore a certain likeness to adenoid cystic carcinomas and to mucoepidermoid tumours, we believe that transitions exist between these groups of neoplasms. The material is thought to reflect the daily practice of oral surgeons and general dental practitioners, and we think it important to emphasize that approximately every second tumour in this series was malignant.