Horner's syndrome can be caused by any interruption in a set of nerve fibers that start in the part of the brain called the hypothalamus and run to the face.
Sympathetic nerve fiber injuries can result from:
Injury to one of the main arteries to the brain (carotid artery) Injury to nerves in the neck called the brachial plexus Migraine or cluster headaches Stroke, tumor, or other damage to a part of the brain called the brainstem Tumor in the top of the lung
Rarely, Horner's syndrome may be present at birth (congenital). The condition may occur with a lack of color (pigmentation) of the iris (colored part of the eye).
What causes Horner's syndrome?
{{NAME}}'s syndrome can be caused by any interruption in a set of nerve fibers that start in the part of the brain called the hypothalamus and run to the face.
Sympathetic nerve fiber injuries can result from:
Injury to one of the main arteries to the brain (carotid artery) Injury to nerves in the neck called the brachial plexus {{NAME}} or cluster headaches Stroke, tumor, or other damage to a part of the brain called the brainstem Tumor in the top of the lung
Rarely, {{ORGANIZATION}}'s syndrome may be present at birth (congenital). The condition may occur with a lack of color (pigmentation) of the iris (colored part of the eye).