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Age / Sex : 38 / M
Chief complaint : Left knee pain
PHx: None
What is your diagnosis?
Two weeks later, you can see the final diagonosis with a brief discussion of this case (Please submit only one answer)
Courtesy : 강병성 (Byeong Seong Kang), 울산대학교병원 (University of Ulsan College of Medicine, Ulsan University Hospital, Ulsan)
Diagnosis: tenosynovial giant cell tumor
Discussion
Findings
1. Plain radiograph: No abnormality
2. MR images: well-circumscribed nodule in suprapatellar bursa
T2-weighted image: low to intermediate signal intensity
T1-weighted image: intermediate signal intensity
Fat-suppressed contrast-enhanced T1-weighted image: heterogeneous enhancement
References
1. Gouin F and Noailles T. Localized and diffuse forms of tenosynovial giant cell tumor (formerly giant cell tumor of the tendon sheath and pigmented villonodular synovitis). Orthop Traumatol Surg Res. 2017;103(1S):S91-S97.
2. Murphey MD, Rhee JH, Lewis RB, Fanburg-Smith JC, Flemming DJ, Walker EA. Pigmented villonodular synovitis: radiologic-pathologic correlation. Radiographics. 2008;28:1493-1518.
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