title: Teaching NeuroImages: Positive apraclonidine test in Horner syndrome.
authors.affiliation: Department of Neurology, 110 South Paca Street, Third Floor, Baltimore, MD 21201, USA. rshin@som.umaryland.edu
authors.forename: Robert K
authors.initials: RK
authors.lastname: Shin
authors.forename: Andrew G
authors.initials: AG
authors.lastname: Cheek
mesh_terms: D000316:Adrenergic alpha-Agonists; D000328:Adult; D001763:Blepharoptosis / Q000175:diagnosis / Q000209:etiology; D003000:Clonidine / Q000031:analogs & derivatives*; D017586:Diskectomy; D005260:Female; D006732:Horner Syndrome / Q000175:diagnosis* / Q000473:pathology; D006801:Humans; D015877:Miosis / Q000175:diagnosis / Q000209:etiology; D011183:Postoperative Complications / Q000175:diagnosis
chemical_list: D000316:Adrenergic alpha-Agonists; C016986:apraclonidine; D003000:Clonidine