Shetty Sujeeth Kumar, Hegde Usha, Agarwal Garima, Sreeshyla H S
Department of Oral and Maxillofacial Surgery, JSS Dental College and Hospital, Mysuru, Karnataka, India.
Department of Oral Pathology and Microbiology, JSS Dental College and Hospital, Mysuru, Karnataka, India.
Ann Maxillofac Surg. 2018 Jul-Dec;8(2):327-329. doi: 10.4103/ams.ams_161_18.
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.
腱鞘巨细胞瘤（TGCT）是一种起源于关节滑膜的良性增生性病变，在颞下颌关节中很少见。它常表现为耳前疼痛性肿胀，并影响颌骨功能。可见的TGCT有两种类型，即弥漫性TGCT（TGCT-D）和局限性TGCT。本文描述了一例TGCT-D病例，该病例的亮点是出现了广泛的软骨样化生区域，这些区域类似于软骨样病变，但根据肿瘤细胞内免疫组化结果为阴性而排除。
