. The pathological anatomy of the ear . Fig. THE DRUM-MEMBRANE. 87 mucosa of the drum-membrane. They are seen ex-ceptionally on the skm in the form of circumscribed,hard, glistening white, pearl-like bodies, varying insize from a millet seed to the head of a pin, and aresometimes found in large numbers. They are of car-tilaginous consistence, and contain a yellowish thickmass (epithelium) inclosed in a firm investing mem-brane; they are subject to an excentric change of po-sition with the growth of the epithe-lial layer of the drum-membrane^just as extravasations are. Sinceglandular eleme
. The pathological anatomy of the ear . Fig. THE DRUM-MEMBRANE. 87 mucosa of the drum-membrane. They are seen ex-ceptionally on the skm in the form of circumscribed,hard, glistening white, pearl-like bodies, varying insize from a millet seed to the head of a pin, and aresometimes found in large numbers. They are of car-tilaginous consistence, and contain a yellowish thickmass (epithelium) inclosed in a firm investing mem-brane; they are subject to an excentric change of po-sition with the growth of the epithe-lial layer of the drum-membrane^just as extravasations are. Sinceglandular elements are wanting inthe membrana tympani, these smalltumors cannot be regarded as mil-ium, which they externally very Fig. resemble, but may be possi- J^^^^ ^™^^^ /^^ ^ J L Drum-membrane. Irom bly very small cholesteatomata. Urbantsciutsch. The epithelial new growths on the mucous mem-brane are flat, round, white protuberances, only vis-ible from within the tympanum. Membranous, papillary, and polypoid new growthsare very common on th
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Keywords: ., bookcentury1800, bookdecade1870, bookidpa, booksubjecteardiseases
