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Physeal stress injury
Heather Borders, MD
over 7 years ago
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Case History


16 month old female with palpable abnormality.


Case Detail

Anatomy: Musculoskeletal
Junewick
Joseph Junewick, MD FACR
Diagnostic Category: Developmental or Congenital
Created: over 7 years ago
Updated: over 7 years ago
Tags: PEDS
Modality/Study Types: CR
Activities:
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Reveal Findings

CR – Exostosis extending medially from the anterior supracondylar humerus.

Reveal Discussion

The supracondylar process is a vestigial remnant of the supracondylar foramen or epitrochlear foramen found in cats, climbing mammals and lower primates. The supracondylar process serves as an attachment site for muscular variations of the pronator teres and coracobrachialis (and phylogenically,the climbing muscle latissim-condyloideus) and offers some protection to the neurovascular bundle.

The supracondylar process is a uncommon normal variation. It is a hook-like boney spur of variable size eminating from the anteromedial distal humerus. A fibrous band may connect this process to the medial epicondyle; this band occasionally ossifies.

A supracondylar process is usually of no clinical significance. Fractures have been reported. Occasionally, the brachial artery and/or the median nerve may become compressed.

Reveal Diagnosis

Supracondylar Process of the Humerus

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