musculoskeletal and connective tissue disorders
Bursitis
Key Points
The usual causes of bursitis are injury and overuse, but infection and crystal-induced disease are possible. Withdraw bursal fluid to diagnose bacterial or crystal-induced bursitis when the olecranon or prepatellar bursa is affected or when there is warmth, redness, tenderness, and pitting edema. If no infection is present, treat most cases with rest, high-dose NSAIDs, and sometimes intrabursal corticosteroid injection. 