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Research ArticleHead and Neck Imaging

Calcification in Chronic Maxillary Sinusitis:Comparison of CT Findings with Histopathologic Results

Jung Hwan Yoon, Dong Gyu Na, Hong Sik Byun, Young Hye Koh, Seung Kyu Chung and Hun-Jong Dong
American Journal of Neuroradiology April 1999, 20 (4) 571-574;
Jung Hwan Yoon
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Dong Gyu Na
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Hong Sik Byun
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Young Hye Koh
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Seung Kyu Chung
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Hun-Jong Dong
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Abstract

BACKGROUND AND PURPOSE: It is important to differentiate fungal from nonfungal sinusitis in order to determine the optimal treatment for chronic sinusitis. The purpose of this study was to describe the CT findings of calcifications in chronic fungal and nonfungal maxillary sinusitis.

METHODS: Five hundred ten patients with pathologically proved chronic maxillary sinusitis were studied with unenhanced CT before undergoing sinonasal surgery. In 36 patients, the CT scans were reviewed retrospectively to ascertain the shape and location of intrasinus calcifications.

RESULTS: Calcifications were found in 20 (51%) of 39 patients with fungal sinusitis and in 16 (3%) of 471 patients with nonfungal sinusitis. Direct histopathologic correlation was performed in two of 16 patients with nonfungal sinusitis who had intrasinus calcification. The location of intrasinus calcification was central in 95% of the patients with fungal sinusitis and peripheral in 81% of those with nonfungal sinusitis. Although calcifications with a nodular or linear shape were seen in both fungal and nonfungal sinusitis, fine punctate type calcifications were seen only in those with fungal sinusitis (50%) and round or eggshell type calcifications only in those with nonfungal sinusitis (19%).

CONCLUSION: Intrasinus calcifications are different in location and shape between fungal and nonfungal maxillary sinusitis. Although intrasinus calcification is uncommon in nonfungal sinusitis, the CT finding of intrasinus calcification may be helpful for differentiating fungal from nonfungal maxillary sinusitis.

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American Journal of Neuroradiology
Vol. 20, Issue 4
1 Apr 1999
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Cite this article
Jung Hwan Yoon, Dong Gyu Na, Hong Sik Byun, Young Hye Koh, Seung Kyu Chung, Hun-Jong Dong
Calcification in Chronic Maxillary Sinusitis:Comparison of CT Findings with Histopathologic Results
American Journal of Neuroradiology Apr 1999, 20 (4) 571-574;

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Calcification in Chronic Maxillary Sinusitis:Comparison of CT Findings with Histopathologic Results
Jung Hwan Yoon, Dong Gyu Na, Hong Sik Byun, Young Hye Koh, Seung Kyu Chung, Hun-Jong Dong
American Journal of Neuroradiology Apr 1999, 20 (4) 571-574;
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