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jugular foramen |
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jugular foramen [′jəg·yə·lər fə′rā·mən] (anatomy) An opening in the cranium formed by the jugular notches of the occipital and temporal bones for passage of an internal jugular vein, the ninth, tenth, and eleventh cranial nerves, and the inferior petrosal sinus. 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 mass involved the jugular foramen inferiorly and extended into the cavernous sinus surrounding the carotid artery. [4] The spinal accessory nerve leaves the jugular foramen and passes laterally and backward, either posterior or anterior to the internal jugular vein, then descends obliquely to the upper part of the sternocleidomastoid muscle. Contrast-enhanced computed tomography (CT) of the temporal bone (3-mm serial cuts) demonstrated (1) heterogenously enhancing densities with loculated collections in the left middle ear and mastoid cavities, (2) gross destruction of the mastoid portion of the left temporal bone, left occipital bone, and adjacent basisphenoid bone, and (3) destruction of the carotid canal, jugular foramen, and styloid process (figure 2). |
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