Posterior shoulder dislocation

Case contributed by Justin Luke Yap
Diagnosis almost certain

Presentation

The patient was involved in a motor vehicle accident and had difficulty moving the right shoulder at the ER.

Patient Data

Age: 35 years
Gender: Male
x-ray

The right humeral head is en-face with a light-bulb appearance.

Case Discussion

Posterior shoulder location as depicted by the lightbulb sign.

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