Horner's syndrome

What is Horner's syndrome?

Horner's syndrome meaning A condition in which one side of the face is flushed, does not produce sweat, and has a constricted pupil and drooping eyelid. It can be caused by an injury to, or paralysis of, nerves in the neck, or by a tumor.

 

reference: national Cancer Institute – Glossary for Registrars

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