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Os supratrochleare dorsale

Case contributed by Muneesh Sharma
Diagnosis almost certain

Presentation

A baseball player presents with inability to fully extend the left elbow joint

Patient Data

Age: 20 years
Gender: Male

Left elbow

x-ray

Os supratrochleare dorsale.

Case Discussion

Os supratrochleare dorsale is a separate ossification center in the olecranon fossa. Most of them are asymptomatic.

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