Weekly Case

Title : Case 764

Age / Sex : 45 / M


Chief complaint : Swelling and pain of the right ankle for one year


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).

Courtesy최윤선, Yun Sun Choi 노원을지대학교병원, Nowon Eulji Medical Center, Eulji University


Diagnosis:

Pigmented villonodular synovitis (PVNS)



Discussion


Findings

1.Radiograph: Bulging of the ankle joint capsule with suspicious erosions of the distal tibia and talus


2.MRI (T1, FST2, PD): Multifocal synovial based masses having intermediate to low signal intensity and effusion with fluid-fluid level in the ankle joint


Differential diagnosis


  1. Hemophilia-related arthropathy

  2. Amyloid arthropathy

  3. Synovial chondromatosis


References


  1. Kransdorf MJ, Murphey MD. Imaging of soft tissue tumors. 3rd ed. Philadelphia: Lippncott Williams & Wilkins, 2014:472-481

  2. Murphey MD, Rhee JH, Lewis RB, Fanburg-Smith JC, Flemming DJ, Walker EA. Pigmented villonodular synovitis: radiologic-pathologic correlation. Radiographics. 2008;28(5):1493-1518



Correct Answer
Total applicants 30 Correct answers 11
Name Institution
최형인 전문의
김경호 서울아산병원, 전문의
김종혁 서울아산병원, 전문의
손우곤 양산부산대학교병원, 전공의
이경은 전문의
이경은 전문의
조황희 군의관, 전문의
박영태 서울아산병원, 전문의
권기언 전문의
김성진 365병원, 전문의
이혜란 전문의
Semi-Correct Answer
Total applicants 30 Semi-Correct answers 4
이규정 국군대전병원, 전문의
김동현 공중보건의, 전문의
김아연 서울아산병원, 전문의
박진희 전문의


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