13 results
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Causes of Relative ... , Non-infectious ... ß-blockers, CNS lesions ... #differential # ... infectiousdiseases #table
Appearance of Liver Lesions on Computed Tomography (CT) - Arterial Phase, Portal Venous Phase and Delayed
Appearance of Liver ... Delayed Phase DDx ... CT #radiology #differential ... #diagnosis #comparison ... #table #appearance
Appearance of Liver Lesions on Various Imaging Modalities
 • Computed Tomography (CT) - Arterial Phase, Portal
Appearance of Liver ... Late phase • DDx ... POCUS #radiology #differential ... #diagnosis #comparison ... #table #appearance
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
known as rat bite fever ... or Haverhill fever ... classic targetoid lesions ... PrathitKulkarni #Erythemas #comparison ... #table #differential
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... hemorrhagic skin lesions ... SLE) - Viral infections ... deficiency • Liver ... mountain spotted fever
Appearance of Liver Lesions on Contrast Enhanced Ultrasound - Early arterial, Grayscale phase, Late arterial phase,
Appearance of Liver ... phase, Late phase DDx ... POCUS #radiology #differential ... #diagnosis #comparison ... #table #appearance
Appearance of Liver Lesions on Magnetic Resonance Imaging (MRI) - T2, T1 precontrast, T1 portal venous,
Appearance of Liver ... hepatobiliary phase DDx ... MagneticResonance #radiology #differential ... #diagnosis #comparison ... #table #appearance
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... Infections 2. ... patients Skin lesions ... symptoms - Headache, fever ... #table
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... • Most common cause ... : • 80% have fever ... residual lesion ... #causes #management
Endocarditis - Overview and Differential Diagnosis Framework

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV
- Overview and Differential ... night sweats, fever ... Glomerulonephritis DDX ... Persistent bacteremia/fevers ... #Endocarditis #Differential