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Article
November 1936

REPARATIVE PROCESSES IN THE MEMBRANA TYMPANI: SOME INTERESTING MANIFESTATIONS

Author Affiliations

MEMPHIS, TENN.

Arch Otolaryngol. 1936;24(5):600-605. doi:10.1001/archotol.1936.00640050613006
Abstract

EPIDERMAL ESCALATION

The ability of the membrana tympani to reconstruct itself is exceeded only by its failure to do so in some instances. In the same hour I have observed a minute perforation of several years' duration, and a "new growth" membrane which had formed after a radical operation on the mastoid, the membrane extending from the anterior wall of the canal to the posterior wall of the mastoid cavity, completely partitioning the tympanum, with a surface area about equal to that of a 5 cent piece. This membrane was perfectly transparent, apparently consisting only of the epidermal layer, growing posteriorly from a vestige of the anterior border, as proliferation proceeds only in this direction. How so frail and poorly nourished a reconstruction was possible when the minute perforation consisting of all the layers with an abundant blood supply failed to close can be explained on the basis of

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