الفهرس 
Introducion and aim of this workOnly 14 pages are availabe for public view
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Abstract
Most recent clinical and radiologic development in the evaluation and diagnosis of shoulder dysfunction have been driven by two pathophysiologic concepts: (a) Rotator cuff disease which play the main role in shoulder abnormalities. 950/0 of rotator cuff disease are caused by impingement syndrome. (b) Glenohumeral instability and labral abnormalities. The diagnosis and treatment of other causes of shoulder pain such as calcific tendinitis, acute trauma and synovial abnormalities are relatively straight forward compared with those for impingement and instability. In this study we reviewed the regional anatomy of shoulder joint, MRI anatomy and MRI techniques. Then we discussed the pathological conditions that lead to shoulder pain and their MRI appearance. Plain films are excellent for diagnosing fractures, tumors, dislocations, arthritis and calcific tendinitis. However, if the findings of plain fihns are negative or if additional pathology is suspected MRI should be considered. Magnetic Resonance Imaging (MRI) is an excellent non invasive method for diagnosing difficult shoulder problems. Preoperative MRI accurately defines the extent of the rotator cuff.