13 results
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
• Malignancy (Marantic ... Hypercoagulable (APLAS) Microbiology ... : Blood cultures ... (NTBE) Differential ... • Blood cultures
Non-Infective Endocarditis (NBTE / Marantic Endocarditis)
Non-infective endocarditis is also known as: Non-bacterial thrombotic endocarditis (NBTE), Aseptic
, Marantic endocarditis ... Vegetations may be microscopic ... embolize • Cannot differentiate ... Inflammatory cells ... absent How can we differentiate
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood culture ... negative infective endocarditis ... BCNIE #Causes #differential ... #negative #Endocarditis ... InfectiousDiseases #Microbiology
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
Endocarditis - Overview ... and Differential ... Hypercoagulable (APLAS) Microbiology ... : Blood cultures ... #Differential #
Streptobacillus moniliformis on peripheral smear and culture microscopy
 - blood culture; patient w/ outdoor exposure
 -
on peripheral smear ... and culture microscopy ... - blood culture ... #clinical #microscopy ... #microbiology #
Capnocytophaga spp on Culture and Blood Smear
Associated w/ dog/human oral flora, can cause bacteremia in immunocompromised
Capnocytophaga spp on Culture ... and Blood Smear ... #Blood #Smear # ... clinical #microscopy ... #microbiology
Coccidioides on culture and microscopy

This was coccidioides sp (in this particular case was posadasii, although morphologically
Coccidioides on culture ... and microscopy ... empty disjunctor cells ... #Coccidioides #culture ... #microbiology #
Capnocytophaga
Pathogen: Capnocytophaga
 • 9 species, C. canimorsus responsible for the majority of infections
 • Gram-negative rod,
13%), Pneumonia, Endocarditis ... microorganism (Culture ... stain: Peripheral smear ... Capnocytophaga #canimorsus #microbiology
Plasmodium falciparum trophozoites (and crenated red blood cells) - Blood Smear

A classic presentation of Plasmodium falciparum
crenated red blood cells ... ) - Blood Smear ... in a thin blood smear ... peripheral #clinical #microscopy ... #malaria #microbiology
Myelodysplastic Syndromes (MDS)

What?
Myelodysplastic syndromes are a group of disorders caused by blood cells that are poorly
Peripheral Smear ... abnormal under the microscope ... abnormal under a microscope ... blood count with differential ... Peripheral blood smear