Abstract：
Synovial chondromatosis is a benign condition characterised by the presence of small cartilaginous nodules in the joint; its aetiology is unknown. Only a few cases of temporomandibular chondromatosis are described in the literature. In some cases, the synovial chondromatosis can erode the adjacent bone structures, such as the glenoid fossa, middle cranial fossa, and internal carotid canal. In these cases, besides MRI, the gold standard to verify the erosion of the glenoid fossa is a computed tomography scan. The aim of this study is to report the use of MRI with PETRA (pointwise encoding time reduction with radial acquisition) sequences for the diagnosis and follow-up of temporomandibular joint chondromatosis with suspected erosion of the glenoid fossa.
摘要：
滑膜软骨瘤病是一种良性疾病，其特征是关节中存在小的软骨结节；其病因未知。文献中仅描述了少数颞下颌软骨瘤病。在某些情况下,滑膜软骨瘤病可以侵蚀相邻的骨结构，比如关节盂窝,中颅窝,还有颈内管.在这些情况下,除了核磁共振,验证关节盂窝侵蚀的金标准是计算机断层扫描。这项研究的目的是报告使用PETRA（径向采集逐点编码时间减少）序列进行MRI诊断和随访颞下颌关节软骨瘤病，怀疑关节盂窝侵蚀。
