Diagnostic Evaluation of Pediatric Horner Syndrome

Although pediatric Horner syndrome may be associated with potentially fatal mass lesions, there is no uniform protocol for best practice in evaluating these patients. Recommendations for the diagnostic evaluation in children have been mixed with respect to the choice of which neuroimaging should be performed and the relevance of urine catecholamine testing. The purpose of this study was to review a recently developed protocol to determine which diagnostic studies were of the highest yield in the evaluation of pediatric Horner syndrome.