22 results
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
toxo IgG • CNS PCR ... , may also see skin ... Infectious: ... Syphilis • Pyogenic Abscess ... #Brain #differential
Differential diagnosis of Skin + Eye infections
 • Bacterial: Staph spp, Strep spp, Pseudomonas spp, Bartonella,
Differential diagnosis ... of Skin + Eye infections ... tuberculosis, M. abscessus ... #Differential # ... #fungal #Microbiology
Nontuberculous Mycobacteria
RAPID GROWERS: 
 • Mycobacterium abscessus, chelonae, fortuitum
SLOW GROWERS: 
 • Mycobacterium avium complex, marinum,
Mycobacterium abscessus ... scrofulaceum, malmoense SKIN ... & SOFT TISSUE INFECTION ... #Mycobacteria #differential ... #diagnosis #microbiology
Fever in Returning Travelers from Tropical Regions - Frequent Differential Diagnoses
Medical History:
 • Skin exposure to
- Frequent Differential ... Diagnoses Medical ... without genital lesions ... Returning #Traveler #differential ... #diagnosis #tropical
Liver infections and imaging findings
 - Pyogenic Liver Abscess
 - Amebic Abscess
 - Cholangitic Microabscesses
- Amebic Abscess ... nodular liver lesions ... imaging #radiology #Differential ... #Ddx #Diagnosis ... #Microbiology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... Diagnosis Framework ... tuberculomas, or abscesses ... #differential # ... diagnosis #AIDS
Pustular Skin Lesions - Differential Diagnosis Framework

What are pustules?
• Pustules < 5-10 mm + pus
• Material
Pustular Skin Lesions ... - Differential ... Diagnosis Framework ... pus-filled sore (abscess ... #Lesions #Differential
Causes of Hypotonic Infant (Floppy Newborn) - Differential Diagnosis Algorithm
Central Nervous System - Decreased LOC, Axial
Floppy Newborn) - Differential ... Diagnosis Algorithm ... Hemorrhage • CNS Infection ... Intracranial Mass/lesion ... Hematoma • Abscess
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
Lung Abscess - Diagnosis ... polymicrobial infection ... stable residual lesion ... Differential Diagnosis ... #pulmonary #differential
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 ... Hypercoagulable (APLAS) Microbiology ... Marantic (NTBE) Differential ... or destructive lesion