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zygomatic bone |
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zygomatic bone [¦zī·gə¦mad·ik ′bōn] (anatomy) A bone of the side of the face below the eye; forms part of the zygomatic arch and part of the orbit in mammals. Also known as malar bone. 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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Cementoossifying fibroma is a rare nonodontogenic tumor of the periodontal membrane that arises from the mesodermal germ layer This nonneoplastic, locally destructive tumor has occurred as an osseous lesion in the mandible, the maxilla, the zygoma, all the paranasal sinuses, and the orbital and petromastoid regions. Next, the middle fossa is approached through a straight vertical extension of the postauricular incision, and a 3-cm (anteroposterior) x 4-cm (superoinferior) free bone flap is centered on the root of the zygoma. Physical examination revealed that an expansile, pink, glistening mass had nearly occluded the external auditory canal and that a firm preauricular mass had extended from the angle of the jaw to the zygoma. |
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