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Ossification in nonfungal sinusitis.

Published byBusso Gehrig Modified over 5 years ago

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Presentation on theme: "Ossification in nonfungal sinusitis."— Presentation transcript:

1 Ossification in nonfungal sinusitis.
Ossification in nonfungal sinusitis. A, CT scan shows round and eggshell lesions (arrow) in the left maxillary sinus. The calcific density lesions are located near the inferior wall of the sinus and are separated from the bony wall.B, Photomicrograph of surgical specimen shows well-marginated round woven bone (short arrow) embedded within the fibrotic submucosal layer of the maxillary sinus. There is glandular hyperplasia (long arrow) caused by inflammation in the submucosa of the maxillary sinus (hematoxylin-eosin, original magnification ×100). Jung Hwan Yoon et al. AJNR Am J Neuroradiol 1999;20: ©1999 by American Society of Neuroradiology

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