The diagnostic criteria of allergic fungal rhinosinusitis focus on characteristic clinical, radiographic, histopathologic findings and immunologic characteristics of the disease. None of these are useful for a prompt outpatient diagnosis of the condition. No clear endoscopic signs (pathognomonic) of polyps in allergic fungal rhinosinusitis are mentioned in the literature.
The objective of this study is to describe and evaluate the sensitivity and specificity of an endoscopic sign the intrapolypoidal white particles for the diagnosis of allergic fungal rhinosinusitis in outpatient setting.
In a descriptive, cross-sectional study, 46 chronic rhinosinusitis patients were examined by endoscope in the outpatient clinic. The endoscopic images of the nasal polypi were captured preoperatively. During endoscopic surgery, a sample of nasal polypi was taken for fungal staining and culture. Results of histopathology were compared to the impression of rhinologist on the images of nasal polypi captured preoperatively.
The most common endoscopic features were the expansion of sinus (24, 52.2%) and intrapolypoidal white particles (50%). Intrapolypoidal white particles were calculated to have 85.71% sensitivity, 65.63% specificity, 52.17% positive predictive value, 91.3% negative predictive value and 71.74% diagnostic accuracy.
This study offers a new endoscopic sign, intrapolypoidal white particles for diagnosing allergic fungal rhinosinusitis.
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Al-Qahtani, K., Altamimi, F.N., Al-Harbi, M.H. et al. The Evaluation of the Sensitivity and Specificity of a New Endoscopic Diagnostic Sign of Allergic Fungal Rhinosinusitis: Intrapolypoidal White Particles. J. Maxillofac. Oral Surg. 20, 612–618 (2021). https://doi.org/10.1007/s12663-020-01357-4