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.

    13/68 (page 9)
    if possible, complete closing of the canal. I have given largely to patients aflfected with exostosis, iodide of potassium, but I cannot speak very favour- ably of the results. In the case from which the drawings 1 and 2 were taken, the gentleman, a medical man, has been restored to comparative comfort and good hearing power by attention to the treatment here laid down. PEEFOEATION OF THE MEMBEANA TYMPANI. Figs. 9 to 24. The patient, having suffered from some form of aural catarrh, simple, acute, or chronic, comes complaining of deafness and discharge; there may or may not have been attendant pain. When we inquire into the cause, especially in children, we find that it is not easily ascertained. It may be attributed to cold, or some feverish attack, or have supervened on some one of the exanthemata. Its origin may have been a foreign body or an injury. On examining the ear there is often a quantity of yellowish dis- charge (fig. 53) concealing the membrane and perforation; this is chiefly pus mixed with epithelium. On washing this well out, we see the membrane in varying degrees of thickness and shades of colour, most frequently perforated. These perforations are often large, and not uncommonly a polypus is detected growing from the tympanum through the perforation, or projecting from it (figs. 42 and 45). The aperture may vary in size from a small pin-hole (figs. 17 and 18) or chink to a large ragged opening (fig 11). One or all the bones may be destroyed, ankylosed, or attached by adhesions to the tympanic walls. A mere rim of membrane may be all that is left, or even this may be absent (figs. 9, 10, 11, 12, and 13). A perforation, unless it presents the form of a mere rent in the mem- brane (fig. 50), or a minute pin-hole (figs. 17 and 18), is easily seen, and if not seen, is discovered by means of the otoscope. A source of error to beginners is tbe bright bubble of air and liquid which sometimes obscures the orifice. On throwing a good light on the membrane, and desiring the patient to close the nose and blow, the air will be seen to bubble out through the aperture in the membrane. Sometimes these perforations pulsate ; this B