[Cartilaginous tumors of the jaws. Apropos of 11 cases].

Over a period of 20 years and among a total amount of 585 tumors of the jaws including 61 sarcomas, 4 benign cartilaginous tumours and 11 chondrosarcomas have been observed. Chondromas and osteo-chondromas, exceptional in this site, occured one time in the median and anterior part of the upper jaw and three times in the coronoid process, the condyle and in the area of the symphysis of mandible. Chondrosarcomas of the jaws, observed in relatively young patients, have a tendency to involve the upper jaw and to recur repeatedly. Moreover they are characterized by an increased severity with regard to osteosarcomas and fibrosarcomas of same location.