Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài:A rare case of a swollen knee due to disseminated synovial chondromatosis: a case report | Mackenzie et al. Journal of Medical Case Reports 2010 4 113 http content 4 1 113 jAc JOURNALOF medical ÌỤr case REPORTS CASE REPORT Open Access A rare case of a swollen knee due to disseminated synovial chondromatosis a case report Hugh Mackenzie Vivek Gulati Samantha Tross Abstract Introduction A synovial chondromatosis is a rare benign neoplasm on the synovium. Although described as a benign disease it can be very destructive and can cause severe osteoarthritis and pain. To the best of our knowledge we report the first known case of an extensive presentation of this intra-articular and extra-articular disease of the knee joint. Case presentation A 49-year-old Caucasian man presented with right knee pain and stiffness caused by diffuse intra-articular and extra-articular synovial chondromatosis. He underwent careful preoperative imaging and planning followed by a two-stage arthroscopic and open procedure in order to completely eradicate the disease. He has regained full range of movement but continues to experience residual pain due to severe osteoarthritis. Conclusions Although synovial chondromatosis is described as a benign disease it can be very destructive and debilitating. A challenging management dilemma arises when confronted with both synovial chondromatosis and osteoarthritis. Introduction A synovial chondromatosis is a rare benign neoplasm that is caused by metaplasia of the synovium into chondrocytes 1 . The aetiology of the disease is uncertain. Milligram classified the disease into three phases early active intrasynovial disease but no loose bodies transitional disease active disease and loose bodies and late multiple loose bodies but no intrasynovial disease 2 . The disease is commonly mono-articular and mostly affects the knee 3 . It occurs twice as frequently in men than women and usually presents with increasing joint pain and swelling during the third to fifth decade of a patient s life 4 . A patient with synovial .