11 results
Fungal biomarkers
Beta-d-glucan
Aspergillus galactomannan

By Dr. Sara Dong @swinndong via Febrile [febrilepodcast.com]

#ID  #Infectious Diseases  #Infections
#Differential #Ddx
Beta-d-glucan Aspergillus ... galactomannan ... #Infections #Differential ... #Fungi #BDG #BDGlucan ... #Aspergillus #Candida
Fungal Biomarkers: Comparing Beta-D-Glucan and Aspergillus Galactomannan
Beta-D-Glucan:
 • Polysaccharide cell wall component of many fungi
 •
Fungal Biomarkers ... Galactomannan ... component of many fungi ... • Pathogens: Candida ... #diagnosis #comparison
Morphology and Descriptions of Fungal Infections with Hyphae or Pseudohyphae in Tissues
Yeasts with Pseudohyphae: 
 •
Consistent with Candida ... other hyaline fungi ... with dematiaceous fungi ... #fungi #infections ... #microbiology #differential
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
Gram-negative bacilli - Fungi ... (Candida, Aspergillus ... Histoplasma) - Culture ... Gram-negative bacilli - Fungi ... Pathogens #Diagnosis #Differential
Fungal Biomarkers: Beta-D-Glucan and Aspergillus Galactomannan
Beta-D-Glucan:
 • Polysaccharide cell wall component of many fungi
 • Pathogens:
component of many fungi ... • Pathogens: Candida ... BAL GM does not differentiate ... closely related fungi ... #diagnosis #comparison
Important Fungal Stains
Mycology Lab:
 • Calcofluor white - Fluorochrome that binds glucans and chitin in fungal
preparation from culture ... cell response to fungi ... doesn't stain most fungi ... staining #diagnosis #fungi ... #fungus #comparison
Morphology and Descriptions of Endemic Fungal Infections with Yeasts in Tissues
Broad-based budding yeasts:
 • Description: Broad-based
other hyaline fungi ... with dematiaceous fungi ... #fungi #infections ... #microbiology #differential ... morphology #pathology #atlas
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood culture ... Tropheryma whipplei, Fungi ... (Aspergillus, Candida ... BCNIE #Causes #differential ... diagnosis #causes #culture
1,3-Beta-D-Glucan and Galactomannan Testing Sensitivity Specificity and False Positives
1,3-Beta-D-Glucan
 • Cell wall component of many fungi
Beta-D-Glucan and Galactomannan ... component of many fungi ... • Routine use: Candida ... in BAL does not differentiate ... closely related fungi
Morphology and Descriptions of Endemic Fungal Infections with Yeasts in Tissues
Broad-based budding yeasts:
 • Description: Broad-based
Descriptions of Endemic Fungal ... Cryptococcus, and Aspergillus ... pathology #clinical #atlas ... #fungi #microbiology ... #differential #