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Selective MR imaging approach for evaluation of patients with Horner's syndrome
K B Digre1, W R Smoker, P Johnston
1Department of Ophthalmology and Neurology, University of Utah School of Medicine, Salt Lake City 84132.
Purpose:
To assess the usefulness of MR in the evaluation of patients with Horner's syndrome.
Patients And Methods:
We prospectively performed MR imaging in 33 patients with Horner's syndrome (13 preganglionic and 20 postganglionic) using a protocol specifically designed for pre- and postganglionic varieties of this syndrome. Assignment of patients to pre- or postganglionic categories was performed on the basis of pharmacologic testing.
Results:
Abnormalities in one-half of the patients with preganglionic Horner's syndrome included lateral medullary infarct, spinal cord/root disease, apical lung tumor, and paravertebral metastatic mass. Three of 20 patients with postganglionic Horner's syndrome had carotid artery dissection.
Conclusion:
Routine scanning of patients who have postganglionic Horner's syndrome with cluster headaches was not helpful in our small series.