False-positive MRI and CT findings of an acoustic neuroma.
CT and MRI are excellent imaging modalities available in the work-up of a patient with suspected acoustic neuroma. A case is presented where both CT and MRI suggested the presence of a small acoustic neuroma. Exploration of the cerebellopontine angle and internal auditory canal revealed no evidence of a tumor. A vascular loop around the inferior and superior vestibular nerves was identified and decompression completely eliminated the symptoms. Even with today's sophisticated diagnosis tools available to evaluate a suspected acoustic neuroma, the definitive diagnosis and subsequent treatment may change at surgery.
Haberman
R S
RS
Department of Surgery, Rutland Regional Medical Center, Vermont 05701.
Kramer
M B
MB
D000328:Adult; D003937:Diagnosis, Differential; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D009464:Neuroma, Acoustic / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000601:surgery; D014057:Tomography, X-Ray Computed