17 results
Causes of Hypocomplementemia - CHAMPS Mnemonic
C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis
H - Heavy Chain deposition
Causes of Hypocomplementemia ... glomerulonephritis (>90%) S - Systemic ... Lupus Erythematosus ... @AnnKumfer #Hypocomplementemia ... #Low #Complement
EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus
Clinical Domains:
 • Constitutional domain: Fever
 • Cutaneous domain: Non-scarring
EULAR/ACR Classification ... Criteria for Systemic ... nephritis Immunologic ... anticoagulant • Complement ... Criteria #SLE #Systemic
SLICC SLE Diagnostic Criteria - Systemic Lupus Erythematosus
Clinical and Immunologic Criteria

CLINICAL CRITERIA
 - ACUTE CUTANEOUS LUPUS
Diagnostic Criteria - Systemic ... Lupus Erythematosus ... Clinical and Immunologic ... <100,000/MM3) IMMUNOLOGIC ... anticoagulant - Low complement
Inflammatory Cascade: Pathogenesis and Clinical Findings
Continued Innate Immunity
 • Phagocytosis: (main mechanism) neutrophils and macrophages engulf
dead tissue • Complement ... System: opsonize ... activation of complement ... #Inflammation #pathophysiology ... #immunology
Systemic Lupus Erythematosus (SLE): Pathogenesis

 • Genetic factors (Mutations in HLA- DR2/HLA-DR3 genes, complement genes, cytokine
Systemic Lupus Erythematosus ... HLA-DR3 genes, complement ... self-antigens, activating complement ... #Lupus #Erythematosus ... #SLE #Pathophysiology
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary
 • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
Systemic Lupus Erythematosus ... , oral ulcers, Lupus ... Cytopenia: Common • Immunologic ... 80% - Low complement ... #Systemic #Erythematosus
Type III Hypersensitivity: Pathogenesis and clinical findings
Definition: Small antigen-antibody complexes (produced from normal immune response to
the cause: • Systemic ... Lupus • Erythematosus ... HypersensitivityReaction #Allergy #Immunology ... #pathophysiology
Drug Induced Lupus vs SLE
Drug Induced Lupus (DIL):
 • Epidemiology: -10% of all lupus cases, drug-dependent,
drug-dependent) • Immunologic ... 90% - Low complement ... months to years) Systemic ... Cytopenia: Common • Immunologic ... 80% - Low complement
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
- Local and systemic ... Complement activation ... lupus erythematosus ... Hypersensitivity #Types #Classification ... #Pathophysiology
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
three primary pathophysiologic ... staining): • Low Complement ... Post-strep GN, Lupus ... Idiopathic • Normal Complement ... differential #diagnosis #algorithm