91 results
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
Systemic Lupus Erythematosus ... Positive in 60-80% of cases ... pANCA anti-MPO - Negative ... Evolution: Chronic disease ... #Summary #rheumatology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
three primary pathophysiologic ... causes differentiated ... Post-strep GN, Lupus ... involvement: Anti-GBM Disease ... Pauci-immune mediated (Negative
CNS Manifestations of Systemic Lupus Erythematosus (SLE)

Clinical Manifestations: Demyelinating Syndrome, Headache, Movement disorders, Seizure disorders, Aseptic
Cerebrovascular Disease ... , PRES Pathophysiology ... autoantibodies that will cause ... CNS #neurology #rheumatology ... cerebritis #diagnosis #management
Causes of Splenomegaly - Differential Diagnosis Algorithm
Infectious
 • Bacterial
 • Viral (EBV)
 • Parasitic
 • Fungal
Congestive
Causes of Splenomegaly ... Inflammatory • Systemic Lupus ... Spherocytosis • Acquired causes ... Diagnosis #Algorithm #Causes ... #Hematology
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
pANCA anti-MPO - Negative ... Usual therapeutic management ... Evolution: Chronic disease ... comparison #table #rheumatology ... #diagnosis #management
Systemic Lupus Erythematosus (SLE): Musculoskeletal Manifestations

 • Immune Complex Deposition
    - Arthralgia, Arthritis
Systemic Lupus Erythematosus ... Myopathy (Also caused ... #Systemic #Lupus ... Erythematosus #SLE #MSK ... Complications #pathophysiology
Aortitis - Differential Diagnosis Framework
Non-Infectious Aortitis:
 • Vasculitides: Giant Cell Arteritis (GCA), Takayasu's arteritis, Cogan's Syndrome,
) • Rheumatic Diseases ... : IgG4-Related Disease ... (RA), Systemic lupus ... (SPA) • Other Causes ... Differential #Diagnosis #rheumatology
Systemic Lupus Erythematosus - Summary
Antinuclear (ANA) - 95% - Initial screening test
Anti-dsDNA - 50%
 • Associated
Systemic Lupus Erythematosus ... with more severe disease ... #Systemic #Lupus ... Summary #diagnosis #rheumatology ... #management
Antinuclear antibodies and Systemic lupus
Anti-dsDNA	60-80%	Association with disease activity (when with Farr assay) and lupus nephritis. Can
Association with disease ... Farr assay) and lupus ... Negative association ... with auto-immune diseases ... erythematosus #diagnosis #rheumatology
Causes of Isolated Neutropenia - Differential Diagnosis Algorithm
Congenital
Medications
 • Anticonvulsants
 • Antibiotics
 • Antithyroid
 • Antihypertensive
Causes of Isolated ... Bacteria • Gram Negative ... Destruction • Systemic Lupus ... Diagnosis #Algorithm #Causes ... #Hematology