A rare cause of Horner's syndrome: cervicothoracic spinal root cysts.

OBJECTION: We herein report cervicothoracic spinal root cysts as a rare cause of Horner's syndrome.

CASE REPORT: A 62-year-old woman was admitted to our neuro-ophthalmology clinic complaining of drooping of her right upper eyelid. The history, physical examination, and laboratory tests were normal. The extraocular movements were full. The right eyelid was ptotic and the right pupil was smaller than the left. Right Horner's syndrome was diagnosed by the neuro-ophthalmologic examination and pharmacological tests. Cervical magnetic resonance imaging showed multiple spinal nerve root cysts between C7 and T1 segments of the spinal cord.

CONCLUSION

This report showed for the first time that cervicothoracic spinal root cysts could cause Horner's syndrome and should be kept in mind in performing neuroimaging studies.