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diagnosis rheumatology lupus erythematosus differential management vasculitis classification criteria pathophysiology table champs clinical comparison cryoglobulinemia disease druginduced eularacr gi granuloma
Vasculitis and Vasculitides - Differential Diagnosis Framework When to Consider Vasculitis: • Purpura, ischemic skin lesions •
often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... against MPO • Complement ... vasculitis, and SLE ... Serologies for Cryoglobulins
Causes of Hypocomplementemia - CHAMPS Mnemonic C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis H - Heavy Chain deposition
Causes of Hypocomplementemia ... glomerulonephritis (>90%) S - Systemic ... @AnnKumfer #Hypocomplementemia ... #Low #Complement
Pathophysiology of Hypocomplementemic Urticarial Vasculitis C1q/anti-C1q antibiody -> Immune Complex Formation - Complement Pathway Activation (C3a and C5a)
Pathophysiology of Hypocomplementemic ... Complex Formation - Complement ... TerrierBen #Hypocomplementemic
Cryoglobulinemia Summary Cryoglobulins: • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
activate the immune system ... diseases: - 10% SLE ... • Low serum C4 complement ... disorder (e.g. systemic ... erythematosus (SLE
Systemic Lupus Erythematosus (SLE): Pathogenesis • Genetic factors (Mutations in HLA- DR2/HLA-DR3 genes, complement genes, cytokine
Systemic Lupus Erythematosus ... (SLE): Pathogenesis ... HLA-DR3 genes, complement ... self-antigens, activating complement ... Erythematosus #SLE
Systemic Lupus Erythematosus (SLE) - Diagnosis and Management Summary • Epidemiology: 10-180/100,000, Typically Age 20-40, F:M
Systemic Lupus Erythematosus ... (SLE) - Diagnosis ... are evocative of SLE ... 80% - Low complement ... #lupus #Systemic
Drug Induced Lupus vs SLE Drug Induced Lupus (DIL): • Epidemiology: -10% of all lupus cases, drug-dependent,
Induced Lupus vs SLE ... 90% - Low complement ... months to years) Systemic ... 80% - Low complement ... management of SLE
Vasculitis - Differential Diagnosis Framework When to Consider Vasculitis: • Purpura, ischemic skin lesions • Mononeuritis multiplex • Hematuria, proteinuria,
Diagnosis: • Systemic ... diseases, such as SLE ... Presentation: Systemic ... Elevated AST ALT • Hypocomplementemia ... Vasculitis) • Hypocomplementemic
IgG4-Related Disease Clinical history: Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor 4 phenotypes: •
female, asian • Systemic ... rheumatoid factor), ± hypocomplementemia
SLICC SLE Diagnostic Criteria - Systemic Lupus Erythematosus Clinical and Immunologic Criteria CLINICAL CRITERIA - ACUTE CUTANEOUS LUPUS
SLICC SLE Diagnostic ... Criteria - Systemic ... anticoagulant - Low complement ... #Rheumatology #SLE
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