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Simple Bone Cyst and Fibrous Dysplasia Occurring Simultaneously in Both Mandibles: Case Report
김홍순,송찬종,설동주,이재욱,이백수,권용대,오주영,이정우,최병준 대한치의학회 2013 Journal of korean dental science Vol.6 No.1
Fibrous dysplasia is a benign fi bro-osseous lesion wherein normal bone is replaced with an excessive proliferation of cellular fibrous connective tissue intermixed with irregular bony trabeculae. Fibro-osseous lesions like fibrous dysplasia are often associated with non-epithelial cysts, such as simple bone cyst. The etiologic and pathogenic relationships between fi brous dysplasia and simple bone cyst have not been conclusively established. Nonetheless,the mechanism of cyst formation in fibro-osseous lesion associated with simple bone cyst can be said to differ from that of the typical simple bone cyst of the jaws. This article reports a case of bilateral lesions including fi brous dysplasia and simple bone cyst on each site and reviews the pathogenesis of cyst formation in the fibro-osseous lesion.
Synovial Chondromatosis of the Temporomandibular Joint: A Case Report
조병용,최병준,이백수,권용대,오주영,김홍순,송찬종 대한치의학회 2013 Journal of korean dental science Vol.6 No.2
Synovial chondromatosis (SC) is a rare, benign disease found in metaplastic cartilaginous nodules within thesynovial membrane. The etiology of SC is not well-known, but it may be associated with trauma, chronic abnormalloading, or inflammatory joint disease. It is often found in knee, elbow, ankle, and shoulder joint but rarely in thetemporomandibular joint (TMJ) area. SC of TMJ frequently appears in middle age and more often in females. Clinicalsymptoms include periarticular swelling, pain, crepitus, and limitation of joint motion. The most common featureis a radiographic finding of loose bodies in the joint. Irregularity of joint space and condylar head is also observed. Treatment involves the surgical removal of synovium and loose bodies. The prognosis is good, with low postsurgicalrecurrence rate. Functional improvement of the joint and pain relief are noted in many patients. Malignanttransformation of SC has not been recorded. In this study, we report a 54-year-old female patient who experienceddiscomfort on the right TMJ with SC on the area but made a satisfactory recovery after surgery.