A text-book of the diseases of the ear for students and practitioners . e-spaces and 3H DISEASES OF THE EAR Haversian canals. A portion of the ligaineiituin orbicularis stapedis wasdisplaced by this new osseous growth, and a part of the rim of the footplateof the stapes was firmly united with it. In another specimen (Fig. 141), thegrowth of the bone had already advanced to such an extent towards thefenestra vestibuli that it nearly filled the angle (n) formed by the footplateand anterior crus of the stapes. In another preparation (Fig. 142), in which the process was further advanced,a sharply
A text-book of the diseases of the ear for students and practitioners . e-spaces and 3H DISEASES OF THE EAR Haversian canals. A portion of the ligaineiituin orbicularis stapedis wasdisplaced by this new osseous growth, and a part of the rim of the footplateof the stapes was firmly united with it. In another specimen (Fig. 141), thegrowth of the bone had already advanced to such an extent towards thefenestra vestibuli that it nearly filled the angle (n) formed by the footplateand anterior crus of the stapes. In another preparation (Fig. 142), in which the process was further advanced,a sharply denned plate of bone (o, o) was seen at the anterior part of thefenestra vestibuli; this growth involved the entire labyrinthine wall and dis-placed the annular ligament of the stapes ; at the posterior part of the fenestravestibuli, a bony new-formation was discernible, which had a structure similarto that of the osseous plate in the anterior part, and which had grown intothe fossula fenestrse vestibuli, enveloping the external surface of the footplateof the ; CO. ^—g, -
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectear, booksubjecteardi
