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Volume 16 , Issue 2
Spring 2002

Pages 148153

Magnetic Resonance Imaging Characteristics of Synovial Chondromatosis of the Temporomandibular Joint

Hyung-Gon Kim, DDS, MSD, PhD, Kwang-Ho Park, DDS, MSD, Jong-Ki Huh, DDS, MSD, Yeong-Bok Song, DDS, MSD, PhD, Hee-Soo Choi, DDS

PMID: 12043522

Aims: To determine the characteristic magnetic resonance imaging (MRI) findings of synovial chondromatosis of the temporomandibular joint (TMJ). Methods: MRI was carried out in 11 cases of synovial chondromatosis of the TMJ, which had been confirmed surgically and histologically. Results: Severe bony changes were not apparent. One or more hypointensive loose bodies were seen in 7 of the 11 cases. A considerable amount of synovial fluid, often with capsular expansion, was a common finding. Conclusion: A diagnosis of synovial chondromatosis of the TMJ must be considered when the amount of synovial fluid is abnormally large and the disc position is fairly normal, as seen on closed- and open-mouth MRI of the TMJ, without any associated severe changes in disc shape or bony structure. J OROFAC PAIN 2002;16:148153.

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