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Validation and clinical application of molecular methods for the identification of molds in tissue

P J Paterson1, S Seaton, T D McHugh

  • 1Department of Medical Microbiology, Royal Free and University College Medical School, Royal Free Hospital, London, United Kingdom.

Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America
|December 3, 2005
PubMed
Abstract

Insights

A molecular diagnostic method accurately identified invasive fungal infections from tissue samples. This technique is valuable for detecting less-common molds, which are an increasing concern in clinical settings.

Area of Science:

  • Medical Mycology
  • Molecular Diagnostics
  • Infectious Diseases

Background:

  • Invasive fungal infections (IFIs) caused by less-common molds present diagnostic challenges.
  • Accurate and timely diagnosis is crucial for effective patient management.

Purpose of the Study:

  • To evaluate a previously established molecular method for identifying mold species in histological tissue sections.
  • To determine the incidence of IFIs caused by less-common molds.

Main Methods:

  • A molecular method was applied to sequential tissue specimens from 56 patients with IFIs.
  • Specimens were collected between 1982 and 2000.

Main Results:

  • The molecular diagnostic method achieved a 93% success rate (52 out of 56 cases).
  • All cases with cultured molds were confirmed molecularly.
  • Less-common molds were identified in 7% of cases, indicating a rising trend.

Conclusions:

  • The molecular method is effective for diagnosing IFIs and assessing the incidence of less-common molds.
  • Continued use of tissue culture and microbiologic analysis is recommended for diagnosing IFIs.

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