J Korean Dent Sci.  2019 Dec;12(2):66-72. 10.5856/JKDS.2019.12.2.66.

A Rare Case of Solitary Osteochondroma at the Temporomandibular Joint: A Case Report

• Park B
• Jang WH
• Park TJ
• Lee BK

• KMID: 2470636
• DOI: http://doi.org/10.5856/JKDS.2019.12.2.66

Abstract

Osteochondroma is a bone tumor with cartilaginous growth potential that generally appears near the growth plate of long bones in areas such as hip, knee, and shoulder joints, related to the nature of endochondral ossification and it is known a common benign bone tumor. However, it has been very rare in craniofacial region possibly because craniofacial bone is largely formed by intramembranous ossification. Moreover, reports on the solitary type of osteochondroma in mandibular condyle has been extremely rare. Osteochondroma in mandibular condylar may show various symptoms similar to general temporomandibular joint disorders (TMDs), such as pain in the condylar area during mouth opening, internal derangement, facial asymmetry or posterior open bite. Therefore, it can be disregarded for a long time period without any adequate treatment. Surgical excision has been the treatment option for the solitary osteochondroma with very low recurrence rate reportedly. In this case report, a rare case of solitary osteochondroma developed in unilateral mandibular condyle is presented with emphasis on differential diagnosis with general TMDs.

Keyword

Mandibular condyle; Mouth opening deviation; Osteochondroma; Solitary type; Temporomandibular joint disorder

MeSH Terms

Diagnosis, Differential
Facial Asymmetry
Growth Plate
Hip
Knee
Mandibular Condyle
Mouth
Open Bite
Osteochondroma*
Recurrence
Shoulder Joint
Temporomandibular Joint Disorders
Temporomandibular Joint*