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Rare lesions of the posterior fossa with initial retrocochlear auditory and vestibular complaints
W C Kinney1, S E Kinney, J Perl
1Section of Otology and Neurotology, Cleveland Clinic Foundation, OH 44195, USA.
Objective:
To catalog a series of rare lesions of the posterior fossa that appeared with unusual initial retrocochlear symptoms and signs and to make the reader more aware of these unusual lesions with a view to improving initial assessment and treatment planning.
Study Design:
The study was a retrospective case review of seven patients.
Setting:
Multidisciplinary team evaluation in a tertiary hospital referral center.
Patients:
Patients with unusual lesions of the cerebellopontine angle and posterior fossa with initial retrocochlear symptoms and signs were included.
Interventions:
Diagnostic and therapeutic.
Main Outcome Measures:
Hearing preservation and balance function.
Results:
The rare lesions presented include two aneurysms of the anterior inferior cerebellar artery, one giant basilar artery aneurysm, and one each of the following neoplasms: endodermal cyst, choroid plexus papilloma, cavernous angioma, and ependymoma.
Conclusions:
A close working relationship among the otolaryngologist, neurotologist, neurosurgeon, and neuroradiologist is necessary to accurately evaluate these unusual cerebellopontine angle lesions and effect the best treatment outcome.