State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, No. 14, Section 3, Ren Min Nan Lu, Chengdu, Sichuan, 610041, China.
Department of Oral Radiology, West China School of Stomatology, Sichuan University, No. 14, Section 3, Ren Min Nan Lu, Chengdu, Sichuan, 610041, China.
Oral Radiol. 2019 May;35(2):198-204. doi: 10.1007/s11282-018-0342-z. Epub 2018 Aug 23.
Synovial chondromatosis is a benign nodular cartilaginous proliferation that mainly occurs in large joints. The temporomandibular joint is considered to be rarely affected. Several cases of synovial chondromatosis of the temporomandibular joint have been reported with clinical and histological features. People with this disease may present with swelling, pain, intracapsular sounds, and limitation of mandibular movement. Radiographs are an important component in the diagnostic process for synovial chondromatosis. In this article, we report three cases of synovial chondromatosis occurring in the temporomandibular joint with a focus on the radiological features, including those on plain films, cone-beam computed tomography (CT) images, and conventional CT images. The three cases had totally different radiological features. The imaging differences were analyzed and compared to create combined diagnostic methods based on clinical features and examination techniques. The role of cone-beam CT examination in the diagnosis of the disease is discussed.
滑膜软骨瘤病是一种主要发生于大关节的良性结节状软骨增殖性病变。颞下颌关节被认为很少受影响。有几例颞下颌关节滑膜软骨瘤病的临床和组织学特征已被报道。患有这种疾病的人可能会出现肿胀、疼痛、关节内响声和下颌运动受限。影像学检查是滑膜软骨瘤病诊断过程中的一个重要组成部分。本文报道了 3 例发生于颞下颌关节的滑膜软骨瘤病，重点介绍了影像学特征，包括平片、锥形束 CT（CBCT）图像和常规 CT 图像。这 3 例具有完全不同的影像学特征。分析了这些影像学差异，并根据临床特征和检查技术比较制定了联合诊断方法。讨论了锥形束 CT 检查在疾病诊断中的作用。
