Painful Snapping Shoulder Complicating Soft Tissue Pseudotumor Secondary to Rib Osteochondroma: A Case Report

Abstract

Most of osteochondroma is asymptomatic and is initially noticed by non-tender palpable mass. It can affect any part of the body, but the common affected sites are distal femur, proximal humerus and proximal tibia. Sometimes repeated stimulation around mass causes painful idiopathic bursitis. [1][2][3][4][5] Osteochondromadevelop most commonly at distal femur, proximal humerus and proximal tibia, but the rib osteochondroma was reported less commonly. In this report, scapular snapping syndrome complicated by adventitious bursa and soft tissue pseudotumor surrounding the osteochondroma of the 6 th rib body was treated successfully by surgical excision of them. We report this rare case with reviewing the relevant literature.