Kobayashi R, Utsunomiya T, Yamamoto H, Nagura H
Department of Oral Surgery, Nihon University School of Dentistry at Matsudo, Chiba, Japan.
J Oral Sci. 2001 Jun;43(2):97-101. doi: 10.2334/josnusd.43.97.
Rheumatoid arthritis (RA) of the temporomandibular joint (TMJ) in a 59-year-old Japanese woman is reported, including details of clinical, histopathological and radiological findings. The patient had been diagnosed as having RA of the right knee joint 41 years previously, and suffered from arthralgia of the right TMJ. Radiological examination showed a radiopaque lesion of the mandibular head and mandibular fossa in the right TMJ and ankylosis of the right TMJ was diagnosed on the basis of the clinical and radiological findings. Condylectomy was performed. Pathological examination of material from the joint region revealed a marked increase of collagen fibers associated with slight capillary dilatation and hemorrhage. The final diagnosis was ankylosis of the right TMJ due to RA. The literature on TMJ ankylosis secondary to RA is reviewed and discussed.
报告了一名59岁日本女性颞下颌关节（TMJ）的类风湿性关节炎（RA），包括临床、组织病理学和放射学检查结果的详细情况。该患者41年前被诊断为右膝关节RA，且患有右侧TMJ关节痛。放射学检查显示右侧TMJ下颌头和下颌窝有不透射线的病变，根据临床和放射学检查结果诊断为右侧TMJ关节强直。进行了髁突切除术。对关节区域的材料进行病理检查发现胶原纤维显著增加，伴有轻微的毛细血管扩张和出血。最终诊断为RA导致的右侧TMJ关节强直。对继发于RA的TMJ关节强直的文献进行了回顾和讨论。
