Bilateral hypoglossal schwannoma: a radiologic diagnosis.
A 53-year-old woman presented with a complaint of a sore throat. Examination showed a left-sided atrophy of the tongue. Upon protrusion, the tongue deviated to the left, suggestive of a unilateral hypoglossal nerve palsy. Computed tomography revealed enlarged hypoglossal canals. Magnetic resonance imaging (MRI) demonstrated bilateral hypoglossal canal masses, with enhancement following gadolinium administration. Magnetic resonance angiography and MRI with fat suppression revealed nonvascular masses in both hypoglossal canals. Radiological diagnosis of bilateral hypoglossal nerve schwannoma was made and the patient was scheduled for MRI monitoring with six-month intervals. The size of the masses and the clinical manifestations remained unchanged during a two-year follow-up period.
Bektaş
Devrim
D
Department of Otolaryngology, Medicine Faculty of Karadeniz Technical University Farabi Hospital, Trabzon, Turkey.
Caylan
Refik
R
D003390:Cranial Nerve Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D020437:Hypoglossal Nerve Diseases / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D009442:Neurilemmoma / Q000150:complications / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D010612:Pharyngitis / Q000209:etiology; D014057:Tomography, X-Ray Computed