A rare case of temporomandibular joint synovial chondromatosis with cranial base extension

Hong, Ki-Eun; Park, Jun; Yun, Ji-Eon; Kim, Jung-Han; Kim, Chul-Hoon; Han, Song-Hee; Kim, Bok-joo

doi:2021.59.12.734

J Korean Dent Assoc > Volume 59(12); 2021 > Article

CASE REPORT

The Journal of The Korean Dental Association 2021;59(12):734-740.
DOI: https://doi.org/10.22974/jkda.2021.59.12.004 Published online November 30, 2021.

두개저까지 확장된 측두하악관절의 윤활막 연골종증의 희귀 증례

홍기은¹

^¹동아대학교 의과대학 구강악안면외과학교실
^²동아대학교 의과대학 병리학교실

A rare case of temporomandibular joint synovial chondromatosis with cranial base extension

Ki-Eun Hong¹

¹Department of Oral and Maxillofacial Surgery, College of Medicine, Dong-A University
²Department of Pathology, College of Medicine, Dong-A University

Correspondence: Bok-joo Kim, Tel: +82-51-240-5470, Fax: +82-51-241-5475,
Email: omsbjkim@dau.ac.kr

Received: 30 August 2021 • Revised: 30 September 2021 • Accepted: 6 October 2021

Abstract

Synovial chondromatosis is an uncommon benign lesion in which the synovial membrane within the joint forms cartilaginous nodules and loose bodies due to cartilaginous metaplasia. It is rare to develop in the temporomandibular joint, and may be accompanied by cranial base expansion or temporal bone morbidity. A 41-year-old male patient visited our hospital complaining of preauricular pain and crepitus. On CT and MRI, increased synovial fluid in the joint cavity, loose body, temporal bone erosion and cranial base expansion were observed. It was diagnosed as synovial chondromatosis through imaging and clinical symptoms. After arthrocentesis, the symptoms slightly decreased, and arthrotomy was performed for complete resolution of the pain. The patient's pain and crepitus were resolved, and no recurrence of the lesion was observed.

Key Words: temporomandibular joint; synovial chondromatosis