Presentation
Child with a painful elbow following a playground fall.
Patient Data
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Extensive soft tissue swelling is seen around the lateral (external) epicondylar center of ossification. The distance between the ossification center and the metaphysis is increased and it appear displaced somewhat anteriorly.
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The lateral epicondyle (L) is the last center of ossification to appear, and as such all the other centers are also visible: capitellum (C), radial head (R), medial epicondyle (M), trochlear (T) and olecranon (O).
Case Discussion
This case demonstrates typical appearances of a lateral epicondyle avulsion fracture with associated soft tissue swelling.