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tympanic cavity |
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tympanic cavity [tim′pan·ik ′kav·əd·ē] (anatomy) The irregular, air-containing, mucous-membrane-lined space of the middle ear; contains the three auditory ossicles and communicates with the nasopharynx through the auditory tube. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Iatrogenic CSF leaks commonly occur through the cells of the petrous apex to the tympanic cavity or eustachian tube, through the perilabyrinthine cells to the mastoid antrum, through the mastoid air cells at the craniotomy site, or through an opened vestibule and oval window. CT detected no signs of osseous atresia or changes in the tympanic cavity or ossicles. According to Sade, what we consider to be a case of idiopathic hemotympanum is actually a case of granular mastoiditis in which a cholesterol granuloma dominates the pathologic picture; it appears in the tympanic cavity and imparts a steel-blue color to the drum. |
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