Synovial chondromatosis of suprapatellar bursa in a case of rheumatoid arthritis

摘要

A 70-year-old female, hypertensive and diabetic for 15 years, presented with symmetrical inflammatory polyarthritis of the small and large joints of the upper and lower limbs of 8 months duration. She had multiple tender and swollen joints and painful, restricted movement of the left knee. The ESR was elevated, and RF was negative. She was diagnosed as seronegative RA and was initiated on oral MTX and low-dose CS. She also received IA CS in the left knee in view of the severe debilitating pain. At 2 months follow-up, she continued to have left knee pain with tenderness and had no other tender or swollen joints. Radiographs of the knees showed bilateral grade three OA with chondromatosis of the left suprapatellar bursa (Fig. 1A and B, arrow). Surgical removal of cartilaginous bodies while performing a total knee arthroplasty is planned at later date.