19 results
Fungal Biomarkers: Comparing Beta-D-Glucan and Aspergillus Galactomannan
Beta-D-Glucan:
 • Polysaccharide cell wall component of many fungi
 •
Fungal Biomarkers ... Polysaccharide cell wall component ... of many fungi ... Galactomannan #diagnosis ... #comparison #microbiology
Important Fungal Stains
Mycology Lab:
 • Calcofluor white - Fluorochrome that binds glucans and chitin in fungal
exceptions are Aspergillus ... polysaccharide component ... • India ink - "Negative ... microscopy #staining #diagnosis ... #comparison #table
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture Negative ... - Differential Diagnosis ... as a cause of a negative ... AnnKumfer #Culture #Negative ... #Differential #Diagnosis
Fungal Biomarkers: Beta-D-Glucan and Aspergillus Galactomannan
Beta-D-Glucan:
 • Polysaccharide cell wall component of many fungi
 • Pathogens:
Polysaccharide cell wall component ... Coccidioides - Negative ... Cryptococcus - Negative ... Galactomannan #diagnosis ... #comparison
Fungal Pneumonias - Diagnosis Comparison Table
 • Aspergillus
 • Blastomyces
 • Candida
 • Coccidioides
 • Cryptococcus
Fungal Pneumonias ... - Diagnosis Comparison ... Table • Aspergillus ... TheIDtrivia #Fungal ... #Comparison #Table
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
epidermidis - Gram-negative ... bacilli - Fungi ... (Candida, Aspergillus ... bacilli - Fungi ... Bacteria #Pathogens #Diagnosis
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
Endocarditis (IE) Has Negative ... Fungal (Histoplasma ... /Aspergillus) / ... BloodCultures #Diagnosis ... #Management #Algorithm
Transplant Infections Timeline
Pre-transplant:
 • Common bacteria (endogenous): Staphylococci (skin), Gram-negative bacilli (gut)
 • Viruses: HSV (reactivation)
Engraftment:
Staphylococci (skin), Gram-negative ... Staphylococci (skin), Gram-negative ... (mucosa), Aspergillus ... : Aspergillus spp ... #differential #diagnosis
Endocarditis Algorithm - Infective vs Noninfective Causes
Noninfective:
 • Malignancy
 • Autoimmune disease
 • Systemic infection
Native Valve
Endocarditis Algorithm ... bacilli • Fungi ... bacilli • Fungi ... #Endocarditis #Algorithm ... #Differential #Diagnosis
1,3-Beta-D-Glucan and Galactomannan Testing Sensitivity Specificity and False Positives
1,3-Beta-D-Glucan
 • Cell wall component of many fungi
• Cell wall component ... of many fungi ... Almost always negative ... closely related fungi ... Galactomannan #Fungal