A teenager presenting with a forearm mass

A teenager presenting with a forearm mass Skeletal Radiol (2017) 46:1459–1460 DOI 10.1007/s00256-017-2718-2 TEST YOURSELF: ANSWER 1 2 2 Rachel Kopkin & Carlos Gimenez & Ernest Rudman Published online: 1 August 2017 ISS 2017 Reversed palmaris longus median and possibly ulnar nerve entrapment, which can be indistinguishable [2]. The palmaris longus is a muscle of the upper extremity Ultrasound, CT and MRI are useful in the evaluation that exhibits a wide spectrum of anatomical variants, of anomalous muscles and can help patients avoid un- more so than other muscles of the upper extremity. In necessary surgery. A reversed palmaris longus demon- its most common form it is a small, fusiform muscle strates a tendinous origin at the medial epicondyle that that functions as a vestigial flexor of the wrist and orig- becomes more muscular two thirds down the forearm inates at the medial epicondyle as part of the common becoming tendinomembranous at the palmar aponeuro- flexor tendon and inserts at the palmar aponeurosis vo- sis. T1-weighted MR images reveal a pseudomass that lar to the flexor retinaculum [1]. It receives its vascular is isointense to muscle just medial to the flexor carpi supply from branches of the ulnar and brachial arteries radialis tendon (Fig. 1, 3) http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Skeletal Radiology Springer Journals

A teenager presenting with a forearm mass

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Springer Berlin Heidelberg
Copyright © 2017 by ISS
Medicine & Public Health; Imaging / Radiology; Orthopedics; Pathology; Nuclear Medicine
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