title: Glomus vagale tumors.
abstract: We present a case of a multicentric chemodectoma, with the unusual combination of a glomus vagale and a glomus tympanicum tumor. Multicentricity was suspected before selective carotid arteriography. Our patient, although asymptomatic, had elevated levels of urinary catecholamines preoperatively, which returned to normal postoperatively, suggesting biochemical activity of the tumor. Intraoperative hemostasis was assisted by the use of preoperative selective embolization of the tumor mass and the peripheral location of the injected Ivalon was confirmed histologically. The vagus nerve was anatomically spared and complete function was restored within 10 months. The asymptomatic small glomus tympanicum tumor was treated with embolization alone, as the patient chose to defer treatment at this time, but only time will reveal the effectiveness of this method of management.
authors.affiliation: Department of Otolaryngology, University of Toronto, Ontario, Canada.
authors.forename: J
authors.initials: J
authors.lastname: Davidson
authors.forename: P
authors.initials: P
authors.lastname: Gullane
mesh_terms: D000328:Adult; D003390:Cranial Nerve Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D005260:Female; D006801:Humans; D010236:Paraganglioma, Extra-Adrenal / Q000000981:diagnostic imaging / Q000473:pathology*; D011859:Radiography; D014630:Vagus Nerve