Abstract
Osteochondroma or osteocartilageous exostosis is a common disease in the osseoustissue.
However, osteochondroma occurring in the coronoid process is relatively rare, and is interesting in differential diagnosis when resulting from trauma, developmental malformation, temporomandibular dysfunction syndrome and others, and causality of this disease.
This paper described a female patient, 54 years old, whose presenting problem was a chronic limitation of mandibular movement caused by the osteochondroma of coronoid process, and she was treated surgicaly. The problem disappeared following the operation, and the prognosis is favorable.
