Subacromial osteochondroma: A rare cause of impingement syndrome

Abstract

HighlightsSubacromial impingement syndrome is one of the most common disorders of shoulder.Osteochondromas arising under the acromion rarely cause impingement syndrome.The diagnosis of subacromial osteochondroma should be considered in any patient with shoulder impingement syndrome and good functional results can be expected following total excision.

Osteochondroma of the Distal Clavicle: A Rare Cause of Impingement and Biceps Tear of the Shoulder

“…Osteochondroma around shoulder joint including the acromion, proximal humerus or clavicle rarely cause impingement syndrome or tendon rupture. [2][3][4][5][6][7] To date, three studies report on 4 cases in which extrinsic impingement resulted from a distal clavicle osteochondroma. 3 sion involving only the osteochondroma.…”

“…1) Although exostoses are benign lesions, they are often associated with characteristic progressive skeletal deformity and may cause clinical symptoms such as mechanical irritation or impingement. 1) Due to the shoulder anatomy, direct contact of the protruding osteochondroma originating at the scapula, clavicle, or proximal humerus can result in mechanical impingement, [2][3][4][5][6][7] and could be a possible cause of tendon tear. We present here the successful arthroscopic resection in a 24-year-old HME male who presented with impingement syndrome and long head tendon tear of the biceps caused by osteochondroma arising from the distal clavicle.…”

Subacromial impingement by a lipoma arborescens

“…As an extrinsic cause of shoulder impingement [2], mechanical irritation of the subacromial bursa and rotator cuff, by the coracoacromial arch, is the most common cause of impingement syndrome [3]. Of these, there are few reported tumours arising from the coracoacromial arch [3,4]. In addition, limited cases of sub-acromial spaceoccupying lesions have been reported as a cause of SIS, such as lipoma [5,6] and lipoma arborescens [7][8][9][10][11][12][13][14][15].…”

Arthroscopic treatment of an unusual distal clavicle ostheochondroma causing rotator cuff impingement: case report and literature review

“…A painful symptomatology can be observed not only when the neoformation was found at the level of the clavicle, but also at the level of the scapula. [30][31][32][33][34][35][36] In fact, OCs have been found in this location in 3% to 4.6% of all cases. [37][38][39] The lesions arose from different areas, such as the acromion, [31][32][33]35,36 the coracoid, the superior part of the glonoid, 35 the costal surface near the superomedial angle of the scapula.…”