Politzer's text-book of the diseases of the ear and adjacent organs... / by Adam Politzer ; translated by Oscar Dodd ; edited by Sir William Dalby.

  • Politzer, Adam, 1835-1920.
Date:
1894
Catalogue details

Licence: Public Domain Mark

Credit: Politzer's text-book of the diseases of the ear and adjacent organs... / by Adam Politzer ; translated by Oscar Dodd ; edited by Sir William Dalby. Source: Wellcome Collection.

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

    713/760 (page 697)
    r'i cmpiiwr.if.Ai. 'CICTY MALFOBMATIONS OP THE OEGAN OF HEARING. 697 catarrhs which are scarcely observed by the patient, and are often rapidly healed by the inflation of air by my method, or with the catheter. Stein- briigge and Erb have shown that reflex neuroses may be produced by certain unexpected noises (clapping of hands, ringing of a bell, crack of a whip) in hysterical and neurasthenic individuals, even when the ear is normal. Malformations of the Organ of Hearing. The malformations of the ear are in so far of interest to the aurist, that they frequently form the foundation of deafness, i.e., deafmutism. They either occur with malformations of other organs, or are confined to the organ of hearing. Of the latter the bilateral anomalies of formation are full of significance. The malformation affects only some parts of the ear, or the whole organ. Thus with an excessive malformation of the external and middle ears, the Fig. 322. — Auricular Appendage SEATED IN Front of the Tragus in A BoT AGED 9 Years. Removed. Healing of the united edges of the wound with a scarcely per- ceptible linear scar. Fig. 323.—^Rudimentary Auricle in THE Form of a longish Cartilaginous Tumour. internal ear may be normal, and also with arrest of development of the labyrinth, the tympanic cavity and the external ear may be perfectly formed. Anomahes of formation of the auricle are very frequent, and exhibit either an excess or a defect of formation. Among the first are reckoned congenital excessive enlargement of the auricle, the occurrence of two (Knapp) or more (Cassebohm, Langer) auricles on one side (polyotia), and the so-called auricular appendages (Virchow) which project as isolated portions of cartilage in front of the tragus or beneath the auricle in the form of round or longish pro- minences (Fig. 322). Excessive formation is generally confined to the auricle, while arrest of development is as a rule combined with similar defects in the auditory meatus and the middle ear, less frequently in the labyrinth (Cassells). As anomalies of position of the auricle, its location upon the cheek, more rarely upon the neck, : 3 to be mentioned.