Diagnostic Imaging for a Case of Pigmented Villonodular Synovitis of the Temporomandibular Joint.
- Author:
Man Yong SONG
1
;
Kyung Hee LEE
;
Sang Chul LEE
;
Sam Sun LEE
;
Soon Chul CHOI
;
Tae Won PARK
;
Dong Soo YOU
Author Information
1. Department of Oral and Maxillofacial Radiology, College of Dentistry, Seoul National University, Korea.
- Publication Type:Original Article
- MeSH:
Diagnosis;
Diagnostic Imaging*;
Magnetic Resonance Imaging;
Magnets;
Mandibular Condyle;
Synovitis, Pigmented Villonodular*;
Temporomandibular Joint*;
Ultrasonography
- From:Journal of Korean Academy of Oral and Maxillofacial Radiology
1998;28(2):505-519
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The occurrence of PVNS in the TMJ is very rare. We report a case of PVNS which was misdiagnosed as a parotid tumor at first. CT and conventional radiograph revealed a well difined mass demonstrating higher attenuation than adjacent soft tissue. Erosion, expansion of the cortical plate of the mandibular condyle and sclerotic change beneath the margin of the lesion were also shown. MRI demonstrated well defined mass of very low signal intensity on both T1 and T2 image due to ferromagnetic effect and more clearly delineated the extent of the lesion. Ultrasonogram showed homogenous hypoechoic lesion growing toward both condyle and adjacent soft tissue. Histopathologic findings and characteristic appearance of the various imaging method were discribed and the usefulness of these image for diagnosis and pretreatment evaluation of the PVNS were also discussed on this paper.
