Atlas of diseases of the membrana tympani / by H. Macnaughton Jones.

  • Macnaughton-Jones, Henry, 1844-1918.
Date:
1878
Catalogue details

Licence: Public Domain Mark

Credit: Atlas of diseases of the membrana tympani / by H. Macnaughton Jones. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    colour, and inflates with a dry click, as in the case from which this membrane was drawn. I believe, however, that it is impossible to define any typical appearance in this afiection, in which, I regret to say, that treatment has with me proved of little avail. If taken in the early stages, or when the symptoms first manifest themselves, much may be done by mercurial treatment (inunction), followed by iodide of potassium iuternally, at the same time that the Eustachian tube is attended to, and the tym- panum kept free by warm iodide of potassium injections. But when a case comes, as in the subject of this fig., with extreme deafness (both with the watch and the tuning fork), and presents the characteristic teeth of Hutchinson, and the proofs of an attack of insterstitial keratitis, either remote or recent, I do not hope for a good result from any treatment. CRETACEOUS DEPOSITS ON THE MEMBRANE. Figs. 48, 49, These deposits occur occasionally and are easily recognised. They appear as white layers of chalky substance on the membrane, which is generally also altered in shape, perhaps adherent to the tym23anum. They may exist without much disturbance of hearing, and frequently are to be found in one ear only. Fig. 48 represents the membrane of a lad of 18, whose hearing in the left ear was normal, and who consulted me for obstinate deafness in the right ear. The two pockets were covered with irregular-shaped white masses of a chalky substance. The tuning fork was heard less loud in this ear, and inflation of the membrane was attended with a dry sound. I did not interfere. Fig. 49 shows the membrane of an oflScer who consulted me for constant tinnitus in the right ear. The deafness had lasted ten years ; it was rather worse of late ; he had been twelve years in India; the tinnitus commenced after his return home, and the deafness grew worse. There never had been pain; there was no family history of deafness. The watch was not heard on contact. The membrane had a cretaceous mass in the superior pocket, and on inflation there was a dry and grating sound. The tuning fork was heard only in the left ear, whether