NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 8,389 terms related to cancer and medicine.
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- Horner syndrome
- listen (...SIN-drome)
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.