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Query: UMLS:C0851184 (thinning)
 11,252 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

After briefly reviewing the shoulder impingement syndrome, the authors investigate the role of two diagnostic imaging methods, i.e., ultrasonography (US) and arthrography, in demonstrating the typical features of this condition. Over a 15 months' period, 190 patients suffering from shoulder pain were examined with arthrography; 50 of them subsequently underwent acromion plastic surgery and rotator cuff stitching. This study was aimed at comparing US and arthrographic results, applying classifiable criteria to make the most accurate diagnosis of rotator cuff tears. The lack of visibility of the rotator cuff at US was the major and clearest sign of tear (100% of cases). The association between cuff thinning and hypo/hyperechoic damaged focal areas was another major sign (in 76.19% of complete tears and in 14.28% of incomplete tears). Hyperechoic focal areas alone proved to be a false-positive finding in 5 cases, while in 11 of 19 cases normal US patterns were a false-negative finding; in 3 cases other conditions were diagnosed. To conclude, the value of US is emphasized in the screening of the painful shoulder and the use of arthrography is suggested when both clinical tests and US fail to yield enough information for a diagnosis to be made.
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PMID:[Rotator cuff rupture in the shoulder impingement syndrome. Echography and arthrography: 2 diagnostic methods compared]. 782 69

The objective of this paper is to present a review of the role of magnetic resonance imaging in the evaluation of shoulder impingement syndrome and rotator cuff tendon tears. This imaging modality is effective in demonstrating both the soft tissue and bony abnormalities associated with structural shoulder impingement which include subacromial-subdeltoid bursitis, supraspinatus tendinopathy, rotator cuff tendon tears, subacromial osteophytic spurs and acromioclavicular joint capsular hypertrophy and osteophytosis. The detection of a subacromial osteophytic spur is considered specific for shoulder impingement syndrome. The 3 most accurate magnetic resonance imaging signs of a full thickness supraspinatus tendon tear reported are: tendon discontinuity, musculotendinous junction retraction and supraspinatus tendon thinning. The most specific sign is tendon discontinuity and the most sensitive is subacromial-subdeltoid bursal fluid.
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PMID:A review of the role of magnetic resonance imaging in the evaluation of shoulder impingement syndrome and rotator cuff tendon tears. 966 18

High-resolution ultrasonography (US) has gained increasing popularity as a diagnostic tool for assessment of the soft tissues in shoulder impingement syndrome. US is a powerful and accurate method for diagnosis of rotator cuff tears and other rotator cuff abnormalities, provided the examiner has a detailed knowledge of shoulder anatomy, uses a standardized examination technique, and has a thorough understanding of the potential pitfalls, limitations, and artifacts. False-positive sonographic findings of rotator cuff tears can be caused by the technique (anisotropy, transducer positioning, acoustic shadowing by the deltoid septum), by the anatomy (rotator cuff interval, supraspinatus-infraspinatus interface, musculotendinous junction, fibrocartilaginous insertion), or by disease (criteria for diagnosis of rotator cuff tears, tendon inhomogeneity, acoustic shadowing by scar tissue or calcification, rotator cuff thinning). False-negative sonographic findings of rotator cuff tears can be caused by the technique (transducer frequency, suboptimal focusing, imaging protocol, transducer handling), by the anatomy (nondiastasis of the ruptured tendon fibers, posttraumatic obscuration of landmarks), by disease (tendinosis, calcifications, synovial proliferation, granulation or scar tissue, bursal thickening, massive rotator cuff tears), or by patient factors (obesity, muscularity, limited shoulder motion).
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PMID:From the RSNA refresher courses: US of the rotator cuff: pitfalls, limitations, and artifacts. 1654 19

The sonographic presentation of intramedullary bone tumors is rarely reported. A patient with right shoulder pain for 7 months was clinically diagnosed with shoulder impingement syndrome. Sonographic examination revealed a segment of thinning cortex with a large, heteroechoic tumor deep in the greater tuberosity of the humerus. Increased peripheral vascularity of the tumor was observed in the power Doppler mode. The definite diagnosis was a giant cell tumor, whose sonographic findings are discussed.
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PMID:Sonographic appearance of a giant cell tumor of the humerus. 2148 Feb 92