良性软骨母细胞瘤好发于肱骨、股骨,发生在颞颌关节盘极为罕见,国内文献未见报告,我科于1988年收治一例,现报告如下: 患者芦某,女,37岁。因两年前发现右侧耳屏前有一粟粒大小肿物,近一年来明显增大, Benign chondroblastoma occur in the humerus, femur, occurs in the temporomandibular joint disc is extremely rare, no reports of domestic literature, our department was admitted in 1988, a case report is as follows: Patients Lu Mou, female, 37 years old. Two years ago found that the right side of the tragus before the size of a miliary tumor, significantly increased over the past year,