A text-book of the diseases of the ear and adjacent organs . eouslayer of the promontory, which is thrown off in the form of thin, serratedlaminae, among which there is sometimes a piece of the sulcus Jacobsonii,indicating the seat of the necrosis. In other cases there is developed,in consequence of ulcerative destruction of the mucous membrane, withoutany visible separation of particles of bone, an ulcer in the bone of the pro-montory, penetrating to the lamella of the labyrinth, and receiving a worm-eaten, ragged appearance from the numerous ridges and depressions of theinner wall of the tym
A text-book of the diseases of the ear and adjacent organs . eouslayer of the promontory, which is thrown off in the form of thin, serratedlaminae, among which there is sometimes a piece of the sulcus Jacobsonii,indicating the seat of the necrosis. In other cases there is developed,in consequence of ulcerative destruction of the mucous membrane, withoutany visible separation of particles of bone, an ulcer in the bone of the pro-montory, penetrating to the lamella of the labyrinth, and receiving a worm-eaten, ragged appearance from the numerous ridges and depressions of theinner wall of the tympanum. Superficial sequestra on the outer and superiorwall of the tympanum are rare. Of greater extent and importance is the formation of sequestra in cases ofdeep-seated caries. This is almost never confined to one portion of the temporalbone, but if so is most frequently limited to the mastoid process and thelabyrinth. More frequently sequestra are formed at the same time in partsof the meatus and of the mastoid process, or of the mastoid process and the.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjecteardiseases, bookyear
