title: [Glomus tumors in head and neck: assessment with magnetic resonance].
abstract: Glomus tumors originate from paranglionic tissues. In head and neck, these lesions are mainly found near carotid bifurcation, X nerve, jugular bulb or middle ear. These tumors have a low growing rate and are hypervascularized. Their histology show "nonchromaffin" cells and vascular structures involved by a fibrous matrix. MRI, CT and angiography are imaging methods used in glomus tumor. The author describe four cases of jugulo-timpanic glomus tumors studied by MRI, showing their main findings and the value of this method to detection of these lesions.
authors.affiliation: Serviço de Ressonância, Hospital das Clínicas, Faculdade de Medicina, Universidade de S. Paulo.
authors.forename: F R
authors.initials: FR
authors.lastname: Silva
authors.forename: M M
authors.initials: MM
authors.lastname: Daniel
authors.forename: A C
authors.initials: AC
authors.lastname: Magalhães
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D005918:Glomus Tumor / Q000175:diagnosis*; D006258:Head and Neck Neoplasms / Q000175:diagnosis*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D012680:Sensitivity and Specificity
vernacular_title: Tumores glômicos em cabeça e pescoço: avaliação por ressonância magnética.