[Clincopathological analysis of 171 patients with osteochondroma and malignant transformation in maxillofacial bone].

Osteochondroma in maxillofacial region mostly occurs in females, and most commonly located in condylar process, with a malignant change rate of 1.1%, which is similar to that of other parts of the body. Imaging findings have important guiding significance for the diagnosis of osteochondroma malignant change.