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Distinct Histopathologic Features of Complicated Sinusitis

Background: Sinusitis complicated by intracranial or orbital extension can be life-threatening and require emergent intervention. Histologic features of complicated sinusitis have yet to be determined and may have significant implications for understanding pathophysiology. Methods: A structured hist...

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Published in:Annals of otology, rhinology & laryngology rhinology & laryngology, 2022-02, Vol.131 (2), p.126-133
Main Authors: Brown, Hannah J., Ganti, Ashwin, Gattuso, Paolo, Papagiannopoulos, Peter, Tajudeen, Bobby A.
Format: Article
Language:English
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Summary:Background: Sinusitis complicated by intracranial or orbital extension can be life-threatening and require emergent intervention. Histologic features of complicated sinusitis have yet to be determined and may have significant implications for understanding pathophysiology. Methods: A structured histopathology report was utilized to analyze sinus tissue extracted during functional endoscopic sinus surgery (FESS). A total of 13 histopathology variables were compared between patients with complicated sinusitis (CS), CRS without nasal polyps (CRSsNP), and CRS with nasal polyps (CRSwNP). Results: About 24 CS, 149 uncomplicated CRSsNP, and 191 uncomplicated CRSwNP patients were analyzed. Nasal tissue from CS and CRSwNP patients demonstrated similar levels of overall inflammation (66.7% vs. 69.6% with moderate/severe inflammation, P = .466). Relative to CRSsNP, CS patients showed significantly greater overall inflammation (66.7% vs. 41.6%, P = .019). CS patients demonstrated significantly fewer eosinophils per high power field (eos/HPF) and eosinophil aggregates compared to CRSwNP patients (20.8% vs. 70.7% with 5+eos/HPF, P 
ISSN:0003-4894
1943-572X
DOI:10.1177/00034894211012598