title: Prevalence of extramucosal fungal elements in sinonasal polyposis: a mycological and pathologic study in an Egyptian population.
abstract: OBJECTIVE
  The objective of the study was to define the true incidence of fungal elements in the nasal and sinus mucous in cases of chronic rhinosinusitis (CRS) with bilateral polyposis compared with normal controls-in an Egyptian African population-via mycological and histologic techniques.
  
  
  METHODS
  This study was conducted prospectively on 100 patients with the clinical diagnosis of CRS with bilateral nasal polyposis. Fifty volunteers with no history of nasal or paranasal sinus disease served as a control group.
  
  
  CONCLUSIONS
  The postulated criteria for the diagnosis of allergic fungal sinusitis were present in 92% of CRS with polyposis, suggesting that fungi are involved in the disease process of most CRS patients.
authors.affiliation: Faculty of Medicine, Department of Otolaryngology, Cairo University, 7 El Shaheed Mahmoud Afifi St., Almaza, Cairo, Egypt.
authors.forename: Ahmed
authors.initials: A
authors.lastname: Bassiouny
authors.forename: Ashraf
authors.initials: A
authors.lastname: Ragab
authors.forename: Abdel Fattah
authors.initials: AF
authors.lastname: Attia
authors.forename: Ahmed
authors.initials: A
authors.lastname: Atef
authors.forename: Nadia
authors.initials: N
authors.lastname: Hafez
authors.forename: Essam
authors.initials: E
authors.lastname: Ayad
authors.forename: Hany
authors.initials: H
authors.lastname: Sameer
mesh_terms: D000293:Adolescent; D000328:Adult; D002908:Chronic Disease; D004534:Egypt / Q000453:epidemiology; D005260:Female; D005500:Follow-Up Studies; D005658:Fungi / Q000302:isolation & purification*; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D055556:Nasal Lavage; D009297:Nasal Mucosa / Q000382:microbiology* / Q000473:pathology; D009298:Nasal Polyps / Q000453:epidemiology* / Q000382:microbiology / Q000473:pathology; D010256:Paranasal Sinuses / Q000382:microbiology* / Q000473:pathology; D015995:Prevalence; D011446:Prospective Studies; D012220:Rhinitis / Q000453:epidemiology / Q000382:microbiology* / Q000473:pathology; D012852:Sinusitis / Q000453:epidemiology / Q000382:microbiology* / Q000473:pathology; D055815:Young Adult