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Related Experiment Videos

Blastomycosis.

S F Davies1, G A Sarosi

  • 1Pulmonary Service, University of Minnesota Medical School, Minneapolis 55415.

European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology
|May 1, 1989
PubMed
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Blastomycosis, a North American endemic mycosis, begins with inhaled fungal spores causing lung infection. Early treatment is crucial for progressive or extrapulmonary disease, with specific antifungal medications depending on severity.

Area of Science:

  • Mycology
  • Infectious Diseases
  • Pulmonology

Background:

  • Blastomycosis is a poorly understood endemic mycosis in North America.
  • The causative fungus, Blastomyces, exists in soil and forms infectious aerosols when disturbed.
  • Infection occurs via inhalation of spores, leading to primary lung localization.

Purpose of the Study:

  • To elucidate the pathogenesis and clinical manifestations of Blastomycosis.
  • To outline treatment strategies for various forms of Blastomycosis.

Main Methods:

  • Review of existing literature on Blastomycosis epidemiology, pathology, and clinical presentation.
  • Analysis of treatment outcomes for different therapeutic agents.

Main Results:

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  • Inhaled spores settle in alveoli, initiating infection.
  • Cell-mediated immunity typically localizes infection to the lungs.
  • Extrapulmonary spread to skin, bones, prostate, and CNS can occur during the pre-immune phase.
  • Pulmonary disease may resolve spontaneously or progress, necessitating treatment.
  • Amphotericin B is recommended for severe or CNS blastomycosis.
  • Ketoconazole is an alternative for less severe, non-CNS cases.

Conclusions:

  • Blastomycosis requires prompt diagnosis and treatment, especially for progressive or disseminated forms.
  • Antifungal therapy choice depends on disease severity and site of involvement.
  • Further research is needed to improve understanding and management of this endemic mycosis.