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Neuro-otologic Symptoms

Ralph E. Rydell, MD; Jack L. Pulec, MD

Arch Otolaryngol. 1971;94(1):8-12.

Abstract
A series of 29 patients with the Arnold-Chiari malformation who had signs and symptoms related to the auditory and vestibular systems are analyzed, and four illustrative case reports are detailed. Although no consistent pattern emerged, these abnormalities may simulate other lesions, including acoustic neuromas. This disease should be considered in the neuro-otologic differential diagnosis. Hypotheses on the pathogenesis of the auditory and vestibular dysfunction include further stretching of the congenitally elongated nerves, bending of the eighth cranial nerve over the bony edge of the porus acusticus, and compression of brain-stem nuclei by displaced cerebellar tonsils.

Author Affiliations
Rochester, Minn

From the Mayo Graduate School of Medicine, University of Minnesota (Dr. Rydell) and the Department of Otorhinolaryngology, Mayo Clinic and Foundation, Rochester, Minn (Dr. Pulec). Dr. Pulec is currently with the Otologic Medical Group, Los Angeles.

Footnotes
Accepted for publication Jan 29, 1971.

Reprint requests to Section of Publications, Mayo Clinic, Rochester, Minn 55901.

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ABSTRACT