4000 results
Common Variable Immunodeficiency (CVID)

What?
CVID: Immunodeficiency disorder with hypogammaglobulinemia -> increased infection risk secondary to impaired B-cell
Common Variable ... • Chronic lung disease ... Granulomatous disease ... DDX - Other causes ... #CVID #Common #Variable
Palpitations - Differential Diagnosis Framework

What?
• It is an unpleasant awareness or sensation that the heart is
tachycardia with variable ... twitching CARDIAC CAUSES ... • Bradycardia caused ... Nonarrhythmic Cardiac Causes ... NON-CARDIAC CAUSES
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
groups in which one variable ... Proves cause-effect ... group without disease ... good for rare diseases ... but not on the causal
Oroya Fever
Hematologic disease caused by Bartonella bacilliformis
Restricted to the Andes highlands of Peru & Ecuador
B. bacilliformis:
Fever Hematologic disease ... caused by Bartonella ... Days-Weeks): • Variable
Vasculitis and Vasculitides - Differential Diagnosis Framework

When to Consider Vasculitis:
 • Purpura, ischemic skin lesions
 •
tract, and often causes ... (Granulomatous disease ... > 50 years VARIABLE-VESSEL ... atherosclerotic disease ... most important diseases
Bleeding and Bruising - Disorders of Hemostasis - Differential Diagnosis Framework

== Quantitative or Qualitative defect in
Von Willebrand’s disease ... Von Willebrand disease ... Von Willebrand disease ... Xa inhibitors (variable ... discern these causes
CNS Infection in HIV / AIDS - Differential Diagnosis Framework

Principles of HIV-Associated CNS Opportunistic Infections:
 •
(HSV): • CD4 Variable ... Meningitis: • Variable ... Demyelinating disease ... caused by the JC ... PCR sensitivity variable
Unicentric Castleman Disease (UCD) vs Multicentric Castleman Disease (MCD) - Comparison Table

Unicentric Castleman Disease (UCD):
 •
Unicentric Castleman Disease ... Multicentric Castleman Disease ... Unicentric Castleman Disease ... • Prognosis: Variable ... ; depends on cause
Vasculitis - Differential Diagnosis Framework

When to Consider Vasculitis:
• Purpura, ischemic skin lesions
• Mononeuritis multiplex
• Hematuria, proteinuria,
Systemic rheumatic diseases ... atherosclerotic disease ... most important diseases ... tract, and often causes ... malignancy • Variable-vessel
Borrelia recurrentis on Peripheral Blood Smear
23M Somali refugee recently arrived w/severe abd pain, confusion and fever
relapsing fever caused ... TBRF is caused by ... the body louse, causes ... rearranged and variably ... Infectious Diseases