Anconeus epitrochlearis muscle
Updates to Article Attributes
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was changed:
Anconeus epitrochlearis is an accessory muscle at the medial aspect of the elbow. It is also known as the accessory anconeus muscle and should not be confused with the anconeus muscle which is present at the lateral aspect of the elbow.
Epidemiology
The muscle may be unilateral but has been found to be bilateral in one of four patients with cubital tunnel syndrome 2. It is present in ~15% (range 3-28%) of the population 3.
Clinical presentation
It can be asymptomatic or symptomatic when there is compression of the ulnar nerve within the cubital tunnel, leading to ulnar neuritis.
Gross anatomy
- origin: olecranon
- insertion: medial epicondyle
Forms the roof of the cubital tunnel when present.
Radiographic features
USUltrasound
- content pending
MRI
Axial MR images may demonstrate a mass superficial to the cubital tunnel, where there should normally only be fat.
-</ul><p>Forms the roof of the <a href="/articles/cubital-tunnel">cubital tunnel</a> when present. </p><h4>Radiographic features</h4><h5>US</h5><ul><li><em>content pending</em></li></ul><h5>MRI</h5><p>Axial MR images may demonstrate a mass superficial to the cubital tunnel, where there should normally only be fat.</p>- +</ul><p>Forms the roof of the <a href="/articles/cubital-tunnel">cubital tunnel</a> when present. </p><h4>Radiographic features</h4><h5>Ultrasound</h5><ul><li><em>content pending</em></li></ul><h5>MRI</h5><p>Axial MR images may demonstrate a mass superficial to the cubital tunnel, where there should normally only be fat.</p>
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