| Cysts within and adjacent to the lesser tuberosity and their association with rotator cuff abnormalities. | |
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MedLine Citation:
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PMID: 19933654 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: The purpose of our study was to determine the incidence of cysts in and adjacent to the lesser tuberosity and their association with rotator cuff abnormalities and subcoracoid impingement. MATERIALS AND METHODS: A retrospective review of 1,000 consecutive MRI examinations of the shoulder was performed by consensus of two radiologists. Cysts were grouped by location into one of two groups: those within the lesser tuberosity and those adjacent to the lesser tuberosity. The rotator cuff was defined as intact, partial tear or tendinosis, or full-thickness tear. The shortest distance from the coracoid to the humeral head was measured on axial images. RESULTS: Forty-eight patients (26 women, 22 men; age range, 35-79 years; mean age, 61 years) had cysts adjacent to or within the lesser tuberosity. Thirty-two patients (67%) had cysts just superior to the tuberosity and 16 (33%) had cysts in the lesser tuberosity, resulting in an incidence of 3.2% and 1.6%, respectively. All 16 patients (100%) with lesser tuberosity cysts had subscapularis and supraspinatus tendon abnormalities including 11 (69%) full-thickness supraspinatus tears. Patients with cysts superior to the tuberosity had 20 (63%, p = 0.004) abnormal subscapularis tendons and 28 (88%) abnormal supraspinatus tendons, including six (19%) full-thickness tears (p = 0.002). The coracohumeral distance was noted to be less than 10 mm in 10 patients (63%) with lesser tuberosity cysts as compared with 10 patients (31%, p = 0.06) with cysts superior to the tuberosity. CONCLUSION: Cysts located within the lesser tuberosity are rare and are indicative of subscapularis and supraspinatus tendon abnormalities. |
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Authors:
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Robert D Wissman; Sangita Kapur; Jason Akers; Jason Crimmins; Jun Ying; Tal Laor |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: AJR. American journal of roentgenology Volume: 193 ISSN: 1546-3141 ISO Abbreviation: AJR Am J Roentgenol Publication Date: 2009 Dec |
Date Detail:
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Created Date: 2009-11-25 Completed Date: 2010-01-07 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7708173 Medline TA: AJR Am J Roentgenol Country: United States |
Other Details:
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Languages: eng Pagination: 1603-6 Citation Subset: AIM; IM |
Affiliation:
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Department of Radiology, University of Cincinnati Medical Center, Cincinnati, OH 45267-0761, USA. Robert.Wissman@Healthall.com |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Cysts / pathology* Female Humans Humerus / pathology* Magnetic Resonance Imaging / methods* Male Middle Aged Retrospective Studies Rotator Cuff / injuries, pathology* Statistics, Nonparametric |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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