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mastoid antrum |
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mastoid antrum [′ma‚stȯid ′an·trəm] (anatomy) An air-filled space between the upper portion of the middle ear and the mastoid cells. 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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The tumor was encountered in the mastoid antrum adjacent to the incus. 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 revealed that the tumor filled the middle ear, extended to the mastoid antrum, and was wrapped around the ossicular chain. |
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