Accessory muscles: anatomy, symptoms, and radiologic evaluation

A wide array of supernumerary and accessory musculature has been described in the anatomic, surgical, and radiology literature. In the vast majority of cases, accessory muscles are asymptomatic and represent incidental findings at surgery or imaging. In some cases, however, accessory muscles may pro...

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Bibliographic Details
Published inRadiographics Vol. 28; no. 2; p. 481
Main Authors Sookur, Paul A, Naraghi, Ali M, Bleakney, Robert R, Jalan, Rosy, Chan, Otto, White, Lawrence M
Format Journal Article
LanguageEnglish
Published United States 01.03.2008
Subjects
Arm - anatomy & histology
Diagnostic Imaging
Humans
Leg - anatomy & histology
Muscle, Skeletal - abnormalities
Muscle, Skeletal - physiopathology
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Summary:A wide array of supernumerary and accessory musculature has been described in the anatomic, surgical, and radiology literature. In the vast majority of cases, accessory muscles are asymptomatic and represent incidental findings at surgery or imaging. In some cases, however, accessory muscles may produce clinical symptoms. These symptoms may be related to a palpable swelling or may be the result of mass effect on neurovascular structures, typically in fibro-osseous tunnels. In cases in which an obvious cause for such symptoms is not evident, recognition and careful evaluation of accessory muscles may aid in diagnosis and treatment.
ISSN:1527-1323
DOI:10.1148/rg.282075064