Image from page 76 of "The membrana tympani in health and disease : clinical contributions to the diagnosis and treatment of diseases of the ear, with Supplement" (1869)

Identifier: membranatympanii00poli

Title: The membrana tympani in health and disease : clinical contributions to the diagnosis and treatment of diseases of the ear, with Supplement

Year: 1869 (1860s)

Authors: Politzer, Adam, 1835-1920 Newton, H. G. (Homer George), 1835-1915, tr Mathewson, A. (Arthur), b. 1837, tr

Subjects: Ear Ear Diseases

Publisher: New York : W. Wood & co.

Contributing Library: Francis A. Countway Library of Medicine

Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

 

 

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g from apathological process. In the casesjust mentioned, nothing can be saidwith certainty concerning the manner in which thesedeposits originated. The sketches immediately following represent patho-logical preparations, taken from persons whom I ex-amined during life. Fig. 3 represents the inner side of the left membranatympani of a girl, twenty-four years of age, who died ofphthisis in the clinical department ofDr. Kolisko. In her twelfth year shehad suffered for a short time fromotorrhoea. Upon this side she heardmy watch at the distance of one foot;my somewhat sonorous voice at fromeight to ten feet sounded very hoi- Eig-s- low, as if it came out of a cellar. Besides this conditionof the membrane, no anomaly could be discovered inthe hearing apparatus. The calcareous deposit (Fig.3) in front of the handle of the malleus had not onlyinvaded all the layers of the membrane, but even pro-jected inward markedly beyond the surface of themucous layer. Upon the uncalcined portions of the

 

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62 Membrana Ty7npani. membrane, the radiate and circular fibrous layers wereseen abruptly terminating at the distance of a line fromthe periphery. From here to the manubrium the mem-brane was remarkably thin and transparent, moresunken than the peripheral portion, so that the bound-ary between the thick peripheral and thin central por-tions was marked by a pretty sharp line. Only at onepoint of the thin part a bundle of irregularly arrangedradiating fibres extended, in the form of a triangle, fromthe end of the manubrium toward the periphery. (SeeYon Troltsch, 1. c.) Fig. 4 is a sketch of the external surface of the rightmembrana tympani of a man, seventy years of age, whodied in the section of Dr. Chrastina. Inyouth he had suffered from otorrhoea fora long time, and had become entirelydeaf. Besides anchylosis of all the ossi-cles with the walls of the tympanic cav-ity, there was a small thick calcareousmass deposited in front of the handleof the malleus, and behind it was a larger on

 

 

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