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Allergic fungal sinusitis and eosinophilic mucin rhinosinusitis: diagnostic criteria
1Department of Otolaryngology - Head and Neck Surgery, Lady Davis Carmel Medical Center, Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel.
Background:
Chronic sinusitis is one of the most common otolaryngological diagnoses. Allergic fungal sinusitis and eosinophilic mucin rhinosinusitis can easily be misdiagnosed and treated as chronic sinusitis, causing continuing harm.
Aim:
To better identify and characterise these two subgroups of patients, who may suffer from a systemic disease requiring multidisciplinary treatment and prolonged follow up.
Methods:
A retrospective, longitudinal study of all patients diagnosed with allergic fungal sinusitis or eosinophilic mucin rhinosinusitis within one otolaryngology department over a 15-year period.
Results:
Thirty-four patients were identified, 26 with eosinophilic mucin rhinosinusitis and 8 with allergic fungal sinusitis. Orbital involvement at diagnosis was commoner in allergic fungal sinusitis patients (50 per cent) than eosinophilic mucin rhinosinusitis patients (7.7 per cent; p < 0.05). Asthma was diagnosed in 73 per cent of eosinophilic mucin rhinosinusitis patients and 37 per cent of allergic fungal sinusitis patients.
Conclusion:
Allergic fungal sinusitis and eosinophilic mucin rhinosinusitis have the same clinical presentation but different clinical courses. The role of fungus and the ability to confirm its presence are still problematic issues, and additional studies are required.
Insights
Allergic fungal sinusitis and eosinophilic mucin rhinosinusitis present similarly but have different outcomes. Differentiating these conditions is crucial for appropriate patient management and treatment.
Area of Science:
- Otolaryngology
- Allergy and Immunology
- Pathology
Background:
- Chronic sinusitis is a common diagnosis, but allergic fungal sinusitis (AFS) and eosinophilic mucin rhinosinusitis (EMR) are often misdiagnosed.
- Misdiagnosis can lead to ineffective treatments and continued patient harm.
Purpose of the Study:
- To identify and characterize AFS and EMR patient subgroups.
- To highlight potential systemic diseases requiring multidisciplinary care and long-term follow-up.
Main Methods:
- Retrospective, longitudinal study.
- Analysis of patients diagnosed with AFS or EMR over a 15-year period in an otolaryngology department.
Main Results:
- Thirty-four patients identified: 26 EMR, 8 AFS.
- Orbital involvement was more frequent in AFS (50%) than EMR (7.7%).
- Asthma prevalence was higher in EMR (73%) compared to AFS (37%).
Conclusions:
- AFS and EMR share clinical presentations but differ in clinical course.
- Challenges remain in confirming fungal presence and understanding its role.
- Further research is needed to clarify these conditions.
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