A text-book of the diseases of the ear and adjacent organs . nna Institute for the Deaf and Dumb, no disturb-ance of co-ordination was observed in him. INFLAMMATION OF THE LABYKINTH. 639 He died at the age of 13 from acute peritonitis. The necroscopy gave thefollowing result: Both membrana tympani, as well as the mucous membraneof the tympanic cavities, were normal. The malleus and the incus were freelymovable. The stapes, on the other hand, was fixed and immovable on bothsides. The niche of the fenestra rotunda was indicated by a small fossa, thebase of which was formed by a solid osseous mas
A text-book of the diseases of the ear and adjacent organs . nna Institute for the Deaf and Dumb, no disturb-ance of co-ordination was observed in him. INFLAMMATION OF THE LABYKINTH. 639 He died at the age of 13 from acute peritonitis. The necroscopy gave thefollowing result: Both membrana tympani, as well as the mucous membraneof the tympanic cavities, were normal. The malleus and the incus were freelymovable. The stapes, on the other hand, was fixed and immovable on bothsides. The niche of the fenestra rotunda was indicated by a small fossa, thebase of which was formed by a solid osseous mass. Examination of the decalcified labyrinth gave the following results(Fig. 316) : The capsule of the cochlea was intact and demarcated from theoverlying portion of the petrous bone. The coils of the cochlea could beplainly distinguished throughout. The cavity of the cochlea (b) was entirelyfilled with new-formed osseous tissue, which bore the character of periostealbone. The auditory nerve (c) entered with its normally arranged medullated / d 1 \ jp\» IP.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjecteardiseases, bookyear
