Anconeus muscle

Last revised by Dr Mohamed Saber on 29 Nov 2020

The anconeus muscle is a small muscle in the posterior compartment of the arm at the lateral aspect of the elbow. It has little functional significance but should be differentiated from the variably present anconeus epitrochlearis at the medial aspect of the elbow.

Summary

Related pathology

In chronic cases of lateral epicondylitis (tennis elbow) increased signal intensity of the nearby anconeus muscle may be an associated finding. 

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Cases and figures

  • Figure 1: posterior elbow
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  • Figure 2: posterior elbow
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  • Case 1: normal anconeus muscle
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