期刊
AMERICAN JOURNAL OF OTOLARYNGOLOGY
卷 34, 期 4, 页码 366-368出版社
W B SAUNDERS CO-ELSEVIER INC
DOI: 10.1016/j.amjoto.2013.01.005
关键词
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Understanding of the embryologic origin of the stapes remains controversial. Theories diverge upon whether the entirety of the stapes arises from a single source versus the footplate and suprastructure arising from distinct sources. A 12-year-old boy with left-sided conductive hearing loss had computed tomography of the temporal bone, revealing an inferiorly displaced left stapes, and a nonspecific density in the left Prussak's space. Exploratory tympanotomy revealed the crura of the stapes to be attached to the promontory. The stapes footplate was located in the oval window and was mobile. (C) 2013 Elsevier Inc. All rights reserved.
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