title: Exophytic pontine glioma mimicking acoustic neurinoma: CT and MRI appearance.
abstract: A 31-year-old female having a family history of neurofibromatosis 1 presented a left CPA tumor. MRI findings showed a completely extraaxial tumor, suggesting an acoustic neurinoma except for the lesion in the acoustic meatus. However, the final diagnosis was of exophytic pontine glioma. When a CPA tumor shows no lesion in the internal acoustic meatus, the possibility of exophytic pontine glioma should be considered in the differential diagnosis, especially in NF-1 patients.
authors.affiliation: Department of Radiology, Kanto Teishin Hospital, Tokyo, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Ozawa
authors.forename: Y
authors.initials: Y
authors.lastname: Katsumata
authors.forename: T
authors.initials: T
authors.lastname: Maehara
mesh_terms: D000328:Adult; D001932:Brain Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D003937:Diagnosis, Differential; D005260:Female; D005910:Glioma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008279:Magnetic Resonance Imaging; D009464:Neuroma, Acoustic / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D011149:Pons / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed