Figure 1
Quick Poll
A 26-year-old female presents to the emergency room following a motorcycle accident. She has a broken clavicle and complains of weakness in her left forearm and hand. Examination reveals a left-sided ptosis, a constricted pupil, and hemifacial anhidrosis. Horner syndrome is suspected. Based on these symptoms and her history, what is the most likely location of her neurologic injury? Image credit: @rdmarks.
- Brainstem
- Brachial plexus
- Internal carotid artery
- Spinal cord injury between T1-T4
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