17 results
Causes of Culture Negative Abscess - Differential Diagnosis Framework
Consider prior antibiotics as a cause of a
Causes of Culture ... antibiotics as a cause ... of a negative culture ... Brain: - Streptococcal ... Differential #Diagnosis #InfectiousDiseases
Causes of blood culture negative infective endocarditis

Bartonella spp, Brucella spp, Coxiella burnetii, Chlamydia spp, Tropheryma whipplei,
Causes of blood ... culture negative ... #culture #negative ... #Endocarditis #InfectiousDiseases ... #CNIE #BCNIE #cardiology
Blood Culture-Negative Infective Endocarditis (BCNIE)
Definition: No etiology found after 3 separate blood cultures remain negative for
Blood Culture-Negative ... remain negative ... but important causes ... factors: - Serology ... differential #workup #infectiousdiseases
Differentiating NBTE from Infective Endocarditis
No pathognomonic signs/symptoms or echo features that are specific to NBTE, and
valves • MRI brain ... /serology: + (Negative ... in up to 30% of cases ... often seen • MRI brain ... large infarct - Infectious
Algorithm for evaluating multiple ring-enhancing lesions in immunocompetent (HIV negative)

#ringenhancing #lesions #cns #brain #diagnosis #differential #algorithm
immunocompetent (HIV negative ... #lesions #cns #brain ... differential #algorithm #causes ... #radiology #neurology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
splenomegaly Other infections ... multiple lesions Infectious ... RingEnhancing #Lesions #Brain ... differential #diagnosis #causes ... #radiology #neurology
Tularemia - Diagnosis and Management Summary
Francisella tularensis - Aerobic fastidious gram-negative Coccobacillus - Zoonotic Infection
 •
fastidious gram-negative ... Coccobacillus - Zoonotic Infection ... conditions Diagnosis: Serology ... (preferred), Culture ... management #treatment #infectiousdiseases
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Infectious: • Pre-existing ... devices (CIED) Non-Infectious ... • Coagulase-negative ... Septic Emboli Cause ... diagnosis #management #cardiology
Noncardiogenic Pulmonary Edema - Differential Diagnosis Framework

NCPE Pathophysiology:
Noncardiogenic pulmonary edema occurs because of excessive pulmonary capillary
Framework NCPE Pathophysiology ... Causes include: ... • Normal or negative ... edema (Traumatic brain ... differential #diagnosis #cardiology
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
Infectious: • Pre-existing ... aureus, Coagulase-negative ... Negative: • Bartonella ... Differential #Diagnosis #cardiology ... #infectiousdiseases