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Ann Maxillofac Surg. 2018 Jul-Dec;8(2):327-329. doi: 10.4103/ams.ams_161_18.

Chondroid Tenosynovial Giant Cell Tumor of Temporomandibular Joint.

Author information

1
Department of Oral and Maxillofacial Surgery, JSS Dental College and Hospital, Mysuru, Karnataka, India.
2
Department of Oral Pathology and Microbiology, JSS Dental College and Hospital, Mysuru, Karnataka, India.

Abstract

Tenosynovial giant cell tumor (TGCT), a benign proliferative lesion arising from the synovial membrane of the joints, is rarely seen in the temporomandibular joint. It frequently presents as a painful, preauricular swelling and affects the jaw functions. Two types of TGCT seen are diffuse TGCT (TGCT-D) and localized TGCT. A case of TGCT-D is described here, the highlight of the case being extensive areas of chondroid metaplasia which mimicked chondroid lesions, but was ruled out based on negative immunohistochemical findings within the tumor cells.

KEYWORDS:

Chondroid metaplasia; synovial membrane; temporomandibular joint; tenosynovial giant cell tumor

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