19 results
Causes of Relative Bradycardia - Note the propensity for intracellular organisms.
Infectious: 
Legionella, Psittacosis, Q fever, Typhoid
Causes of Relative ... ß-blockers, CNS lesions ... #differential # ... diagnosis #infectiousdiseases ... #table #NonInfectious
Clinical Manifestations of Human Herpes Viruses (HHV)

Herpes simplex virus 1	HSV-1	Frequently subclinical (80-90%) Oral lesions (10-20%) congenital
(80-90%) Oral lesions ... virus 7 HHV-7 Fever ... #Viruses #HHV #Microbiology ... #Diagnosis #Comparison ... #Table
Appearance of Liver Lesions on Various Imaging Modalities
 • Computed Tomography (CT) - Arterial Phase, Portal
Appearance of Liver ... Contrast #CT #MRI #POCUS ... #radiology #differential ... #diagnosis #comparison ... #table #appearance
Appearance of Liver Lesions on Computed Tomography (CT) - Arterial Phase, Portal Venous Phase and Delayed
Appearance of Liver ... Lesions on Computed ... CT #radiology #differential ... #diagnosis #comparison ... #table #appearance
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
: • 80% have fever ... Intervention: - Fevers ... residual lesion ... Lung Abscess Differential ... #causes #management
Cold Urticaria
Prevalence - 0.05% in the population
Disease onset - Mostly 2nd to 4th decades of life
Causes
decades of life Causes ... patients Skin lesions ... symptoms - Headache, fever ... #rheumatology #comparison ... #table
Appearance of Liver Lesions on Contrast Enhanced Ultrasound - Early arterial, Grayscale phase, Late arterial phase,
Appearance of Liver ... Ultrasound #Contrast #POCUS ... #radiology #differential ... #diagnosis #comparison ... #table #appearance
Endocarditis Summary

Who?
Infectious:
• Pre-existing valvular disease
• Prosthetic valve
• Congenital heart disease
• IV substance use
• IV catheter
• Recent
Hypercoagulable (APLAS) Microbiology ... night sweats, fever ... Septic Emboli Cause ... Marantic (NTBE) Differential ... #management #cardiology
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... Diagnosis Framework ... hemorrhagic skin lesions ... deficiency • Liver ... mountain spotted fever
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
or Haverhill fever ... classic targetoid lesions ... PrathitKulkarni #Erythemas #comparison ... #table #differential ... #diagnosis #dermatology