6 results
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Tropheryma whipplei, Fungi ... (Aspergillus, Candida ... #diagnosis #causes ... #Endocarditis #InfectiousDiseases ... #Microbiology #
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
but important causes ... (Aspergillus, Candida ... BCNIE Diagnostic ... #Endocarditis #diagnosis ... differential #workup #infectiousdiseases
Important Fungal Stains
Mycology Lab:
 • Calcofluor white - Fluorochrome that binds glucans and chitin in fungal
preparation from culture ... Pathology: • Hematoxylin ... exceptions are Aspergillus ... #microbiology #microscopy ... #staining #diagnosis
Fever After International Travel

Infectious Disease:
• Endemic in either the destination or home region

Viral Syndromes:
Arboviral infections, a
Babesiosis • Plasmodium ... chest film; blood-smear ... dipstick test, microscopic ... examination, culture ... #InfectiousDiseases
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
Hypercoagulable (APLAS) Microbiology ... Tropheryma Whipplei • Aspergillus ... night sweats, fever ... Persistent bacteremia/fevers ... #cardiology #infectiousdiseases
Majocchi’s Granuloma due to Trichophyton rubrum 
This is GMS stain and culture of a skin biopsy
No fever. ... tissues - mainly caused ... Non-dermatophytes: Aspergillus ... Dx: pathology and ... clinical #photo #microscopy