Insights

Molds, particularly Penicillium and Aspergillus species, were found in 67% of chronic rhinosinusitis (CRS) patients, suggesting a significant role for fungal infections in this inflammatory condition.

Area of Science:

  • Mycology
  • Otolaryngology
  • Infectious Diseases

Background:

  • Chronic rhinosinusitis (CRS) is a prevalent inflammatory condition affecting nasal and sinus mucosa.
  • While bacteria are often considered the primary cause of CRS, recent evidence points to the involvement of molds.

Purpose of the Study:

  • To investigate the prevalence and types of mold infections in patients undergoing surgery for chronic sinusitis.
  • To perform a mycological analysis of sinus tissue and lavage samples from CRS patients.

Main Methods:

  • Mycological analysis of mucosal tissue from the ethmoid bulla and maxillary sinus lavage was performed on 107 CRS patients.
  • Tissue samples were incubated in Sabouraud medium, and lavage samples were examined using the dithiothreitol solution method.
  • A control group of patients without chronic sinusitis was included for comparison.

Main Results:

  • Molds were detected in 67% of the examined CRS samples.
  • A total of 41 mold species from 12 genera were identified.
  • Penicillium spp. (46%) and Aspergillus spp. (16%) were the most frequently isolated genera, with specific species like Penicillium crustosum and Aspergillus niger being prevalent.

Conclusions:

  • Fungal presence, particularly Penicillium and Aspergillus, is common in chronic rhinosinusitis.
  • These findings highlight the potential etiological role of molds in CRS, warranting further investigation into antifungal treatments.

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