JOURNAL ARTICLE
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Allergic Fungal Rhinosinusitis: The Latest in Diagnosis and Management.

Allergic fungal rhinosinusitis (AFRS) is the most common form of fungal sinusitis in the United States. Its pathophysiological basis is associated with a predisposed person's type I IgE-mediated allergic response to inhaled mold spores that are ubiquitous in the environment. AFRS is a well-recognized type of chronic, recurrent, and non-invasive hypertrophic sinus disease that affects immunocompetent hosts, most commonly young African American males. There are 5 main criteria used for the diagnosis of AFRS, one being the presence of nasal polyposis. A review of the current literature was performed in order to provide the most up-to-date knowledge regarding the background, diagnosis, management, recent research, and controversies surrounding AFRS. Although much is known about the pathophysiology and etiology of this disease, controversy exists regarding the importance of type I hypersensitivity in AFRS, as humoral immunity and immunoglobulin-independent pathways may also contribute. The potential role of local sinonasal IgE production in the pathophysiology of AFRS is an area of discussion, as is the role of preoperative antifungal medication in improving postoperative patient outcomes. Recent advancements in the diagnosis of AFRS include identification of genes and proteins unique to or over-expressed in AFRS patients. Although AFRS is a well-known and well-described cause of nasal polyposis, controversy still exists regarding this diagnosis. Advances in research may eventually resolve any diagnostic controversies in AFRS.

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