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Radiology Quiz Case 2—Diagnosis
Arch Otolaryngol Head Neck Surg. 2007;133(10):1061.
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Diagnosis: Ossifying fibroma (OF)
Ossifying fibroma is rare fibro-osseous benign tumor that was first described in 1872 by Menzel, who considered it to be a form of osteoma.1 The term benign fibro-osseous lesion is used to describe a spectrum of lesions ranging from fibrous dysplasia to OF, including cementifying OF or cemento-OF, psammomatoid OF, psammomatoid fibroma, juvenile or young OF, and juvenile active OF. Other lesions in this category include benign osteoblastoma and aneurysmal bone cyst.2 The origin of OFs is not clearly known, but they are thought to develop from the periodontal roots or from primitive mesenchymal cells that are able to produce cementum in nonodontogenic tissues.3 They are 1.6 times more common in females, and the most common site is the mandible, accounting for 75% to 89% of the cases.4 Less commonly, the orbit, paranasal sinuses, anterior skull base, or maxilla have been involved.5 The presenting symptoms depend on the location of . . . [Full Text of this Article]
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Radiology Quiz Case 2
Nili Segal, Max Puterman, and Ilan Shelef
Arch Otolaryngol Head Neck Surg. 2007;133(10):1059.
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