title: Atypical localization and atypical magnetic resonance imaging findings of a paraganglioma at the mouth mucosa.
abstract: We present a case of a paraganglioma located at the cheek. The benign nature of the lesion was certainly suggested by the patient's anamnesis, ecotomography, and needle biopsy; nevertheless, before the excision, the surgeon requested magnetic resonance imaging with contrast stain only to better evaluate the relationship between the lesion and the surrounding structures and not to have a precise diagnosis.Under magnetic resonance examination by using T1, T2, and T1 before and after contrast sequences, it showed an aspect different from the conventionally described features for this kind of lesion. After excision, the mass showed a yellowish color and a liquid content. Histologic examination described it as having the features of a glomus tumor.
authors.affiliation: Departments of Radiology, La Sapienza University of Rome, Rome, Italy. mzzdra@hotmail.com
authors.forename: Dario
authors.initials: D
authors.lastname: Mazza
authors.forename: Chiara
authors.initials: C
authors.lastname: Taffon
authors.forename: Paolo
authors.initials: P
authors.lastname: Scarpato
authors.forename: Flavio
authors.initials: F
authors.lastname: Barchetti
authors.forename: Alessandro
authors.initials: A
authors.lastname: Agrillo
mesh_terms: D000368:Aged; D001707:Biopsy, Needle; D002610:Cheek / Q000473:pathology*; D003287:Contrast Media; D003937:Diagnosis, Differential; D005918:Glomus Tumor / Q000175:diagnosis; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D009062:Mouth Neoplasms / Q000175:diagnosis*; D010235:Paraganglioma / Q000175:diagnosis*; D018615:Ultrasonography, Doppler, Color
chemical_list: D003287:Contrast Media