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
Appearance of Liver Lesions on Computed Tomography (CT) - Arterial Phase, Portal Venous Phase and Delayed
Delayed Phase DDx ... #radiology #differential ... #diagnosis #comparison ... #table #appearance ... #hepatology
Appearance of Liver Lesions on Various Imaging Modalities
 • Computed Tomography (CT) - Arterial Phase, Portal
Late phase • DDx ... #differential # ... diagnosis #comparison ... #table #appearance ... #hepatology
Chronic Cough - Differential Diagnosis Algorithm
Red Flags:
 • Fever, night sweats, chills (infection)
 • Weight loss,
Red Flags: • Fever ... sweats, chills (infection ... serious underlying dx ... refer + order CT ... #causes
Purpura - Differential Diagnosis Framework

Non-blanchable, dark red to purple, hemorrhagic skin lesions that result from leakage
Purpura - Differential ... Diagnosis Framework ... hemorrhagic skin lesions ... mountain spotted fever ... #Diagnosis #hematology
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
HIV / AIDS - Differential ... • Symptoms: Fever ... enhancement on CT ... Demyelinating disease caused ... #differential #
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
or Haverhill fever ... classic targetoid lesions ... Erythemas #comparison #table ... #differential # ... diagnosis #dermatology
Lung Abscess - Diagnosis and Management Summary

Lung Abscess Etiology:
 • Necrosis of lung parenchyma by a
polymicrobial infection ... • Most common cause ... : • 80% have fever ... seen • Chest CT ... residual lesion
Lung Infections in HIV - Differential Diagnosis Framework

Disease by CD4 Count:
Any CD4 Count:
 • Mycobacterium tuberculosis,
Lung Infections ... in HIV - Differential ... Diagnosis Framework ... • CT: Halo sign ... factor • May cause
Appearance of Liver Lesions on Contrast Enhanced Ultrasound - Early arterial, Grayscale phase, Late arterial phase,
phase, Late phase DDx ... #differential # ... diagnosis #comparison ... #table #appearance ... #hepatology