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Saccharomyces cerevisiae pneumonia in a patient with acquired immune deficiency syndrome
O W Tawfik1, C J Papasian, A Y Dixon
1Department of Pathology and Oncology, University of Kansas School of Medicine, Kansas City 66103.
Abstract:
The clinical course of a patient with a polymicrobial pneumonia that included Saccharomyces cerevisiae infection is described. S. cerevisiae was recovered from autopsy cultures of the lungs, spleen, oral mucosa, and small intestine, and organisms morphologically consistent with S. cerevisiae were visualized in histologic sections of the lung. The role of this organism as a human pathogen is reviewed.
Insights
A patient developed polymicrobial pneumonia due to Saccharomyces cerevisiae infection. This yeast was found in multiple organs post-mortem, highlighting its potential as a human pathogen.
Area of Science:
- Medical Mycology
- Infectious Diseases
- Pathogen Discovery
Background:
- Polymicrobial pneumonia presents complex diagnostic and therapeutic challenges.
- Saccharomyces cerevisiae, commonly known as baker's yeast, is generally regarded as safe (GRAS).
- Rare instances of Saccharomyces cerevisiae infections in humans necessitate further investigation.
Observation:
- A fatal case of polymicrobial pneumonia is detailed.
- Saccharomyces cerevisiae was identified in autopsy cultures from the lungs, spleen, oral mucosa, and small intestine.
- Histological examination of lung tissue revealed organisms consistent with Saccharomyces cerevisiae.
Findings:
- The study documents a rare case of invasive Saccharomyces cerevisiae infection.
- The yeast was disseminated throughout multiple organs, indicating systemic involvement.
- Morphological evidence supported the identification of Saccharomyces cerevisiae in lung tissue.
Implications:
- This case underscores the potential for Saccharomyces cerevisiae to act as an opportunistic human pathogen.
- Understanding the pathogenic potential of Saccharomyces cerevisiae is crucial for clinical microbiology and infectious disease management.
- Further research is warranted to elucidate the mechanisms and risk factors associated with Saccharomyces cerevisiae infections in immunocompromised or critically ill patients.