8 results
Microorganisms Responsible for Infective Endocarditis

Native valves:
 - Streptococcus viridans 
 - Enterococci 
 - Other streptococci
Responsible for Infective ... Endocarditis ... bacilli - Fungi (Candida ... , Aspergillus, Histoplasma ... #Endocarditis #
My Patient with Infective Endocarditis (IE) Has Negative Blood Cultures
 - Did they receive antibiotics prior
My Patient with Infective ... Endocarditis (IE ... Fungal (Histoplasma/Aspergillus ... patient a surgical candidate ... #Endocarditis #
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
negative infective ... endocarditis Bartonella ... whipplei, Fungi (Aspergillus ... , Candida), Mycoplasma ... #negative #Endocarditis
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... Infective Endocarditis ... whipplei, Fungi (Aspergillus ... , Candida), Mycoplasma ... #Endocarditis #
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Hypercoagulable (APLAS ... 90% of IE cases Culture ... staphylococci Culture ... Tropheryma Whipplei • Aspergillus ... • Blood cultures
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
Endocarditis - Overview ... Hypercoagulable (APLAS ... 90% of IE cases Culture ... Tropheryma Whipplei • Aspergillus ... #Endocarditis
Majocchi’s Granuloma due to Trichophyton rubrum 
This is GMS stain and culture of a skin biopsy
GMS stain and culture ... granulomatous fungal infection ... Non-dermatophytes: Aspergillus ... Fungal infection ... clinical #photo #microscopy
Mycoses

HISTOPLASMOSIS
• Inhalation of conidia → Yeast → travel to lymph nodes → spread in body
• Bird
• Confirmed by culture ... ASPERGILLOSIS • Aspergillus ... Diagnosis: • Culture ... arthritis, and endocarditis ... positive blood cultures