PT  - JOURNAL ARTICLE
AU  - K B Digre
AU  - W R Smoker
AU  - P Johnston
AU  - M R Tryhus
AU  - H S Thompson
AU  - T A Cox
AU  - W T Yuh
TI  - Selective MR imaging approach for evaluation of patients with Horner's syndrome.
DP  - 1992 Jan 01
TA  - American Journal of Neuroradiology
PG  - 223--227
VI  - 13
IP  - 1
4099  - http://www.ajnr.org/content/13/1/223.short
4100  - http://www.ajnr.org/content/13/1/223.full
SO  - Am. J. Neuroradiol.1992 Jan 01; 13
AB  - 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.