Allergic fungal rhinosinusitis: diagnosis and management.

PURPOSE OF REVIEW The proper diagnosis and treatment of allergic fungal rhinosinusitis remain controversial. We discuss recent additions to the literature regarding diagnosis and treatment of this condition. RECENT FINDINGS There is considerable overlap in the clinical features of allergic fungal rhinosinusitis and other forms of eosinophilic mucin chronic rhinosinusitis. Type 1 hypersensitivity and characteristic computed tomographic findings may have predictive value for a final diagnosis of allergic fungal rhinosinusitis, patients with which are more likely to have bony erosion than patients with other forms of chronic rhinosinusitis. The decreases in orbital volume associated with expansive allergic fungal rhinosinusitis disease may spontaneously improve after successful treatment. Most patients have detectable fungal-specific IgE in their so-called allergic mucin. Elevated levels of fungal-specific IgG3 are a consistent finding in patients with allergic fungal rhinosinusitis and eosinophilic mucin chronic rhinosinusitis. Antifungal treatment is still considered a treatment option, but further study is needed. SUMMARY Type 1 hypersensitivity to fungal antigens helps to distinguish allergic fungal rhinosinusitis from other forms of eosinophilic mucin chronic rhinosinusitis. Bony erosion and orbital expansion giving rise to proptosis are prominent features of allergic fungal rhinosinusitis. Advances in medical treatment will require prospective and controlled trials.

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