下顎骨顆頭에 발생한 骨軟骨腫에 의한 非對稱 顔貌의 外科的 治驗例

Cases report of surgical correction of unilateral osteochondroma

The Osteochondroma is the most common of all benign tumors of bone. Most Osteochondromas involve the long bone., and especially the lower metaphysis of the femur and the upper metaphysis of the tibia. They are also seen in the ilium, scapula, vertebrae, and occasionally in the mandible. Osteochondroma is characterized by growing hyaline cartilage at the periphery of the tumor, which ossifies upon cessation of growth. This is to report 4 cases of Osteochondroma occured in mandibular condyle. We treated 4 patients of Osteochondroma associated with facial asymmetry via various orthognatic surgery methods.