title: Tympanic paragangliomas: case reports.
abstract: Glomus tumors, also called paragangliomas, originate from nonchromaffin cells. The tumor is typically vascular and grows from capillary and pre-capillary vessels in-between epithelial cells. It is worth mentioning that the most common symptoms are pulsating tinnitus and hearing loss. Imaging studies (CT and MRI) are necessary for diagnosis. This paper shows five patients seen at the Hospital between 1995 and 2001 presenting glomus tympanicum. Women were most commonly affected, and the age ranged from 48 to 60 years (mean age of 50 years). The most common complaints were pulsating tinnitus and hearing loss. All patients were treated surgically.
authors.affiliation: Hospital Paulista de Otorrinolaringologia.
authors.forename: Maria Eugênia L R B de V
authors.initials: ME
authors.lastname: Neto
authors.forename: Isabela M de
authors.initials: IM
authors.lastname: Vuono
authors.forename: Luiz R O
authors.initials: LR
authors.lastname: Souza
authors.forename: José R G
authors.initials: JR
authors.lastname: Testa
authors.forename: Gilberto U
authors.initials: GU
authors.lastname: Pizarro
authors.forename: Fernando
authors.initials: F
authors.lastname: Barros
mesh_terms: D004428:Ear Neoplasms / Q000473:pathology* / Q000601:surgery; D004432:Ear, Middle / Q000473:pathology* / Q000601:surgery; D005260:Female; D043604:Glomus Tympanicum Tumor / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D014012:Tinnitus / Q000473:pathology; D014057:Tomography, X-Ray Computed