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August 1968

Fossula of the Cochlear Fenestra

Author Affiliations

From the Department of Otolaryngology, University of Washington, Seattle.

Arch Otolaryngol. 1968;88(2):124-130. doi:10.1001/archotol.1968.00770010126002

Anatomy  LITTLE attention has been given the anatomy of the cochlear fenestra and the fossula leading to it since 1772, when Antonio Scarpa published his Anatomical Observations on the Round Window, which has recently been translated and edited by Sellers and Anson.1 Scarpa was well aware of all pertinent preceding work on the cochlear fenestra and evaluated it thoroughly. This is unfortunate, for the earlier literature, like Scarpa's publication, was written in Latin and is not readily translated by most people today. Scarpa pointed out that the older anatomists continued to use the term "round window" although they knew the fenestra was not round. He pointed out that Casserius was the first to mention that a membrane was stretched across the cochlear fenestra. Scarpa credits Haller with the observations that the cochlear fenestra is the medial boundary of the fossula, that the secondary tympanic membrane is anchored in a