11 results
diagnosis rheumatology differential disease erythematosus hematology lupus management sle systemic agglutinin anemia champs cold criteria cryoglobulinemia cryoglobulins eularacr gammopathy glomerulonephritis
Pathophysiology of Hypocomplementemic Urticarial Vasculitis C1q/anti-C1q antibiody -> Immune Complex Formation - Complement Pathway Activation (C3a and C5a)
Pathophysiology of Hypocomplementemic ... Urticarial Vasculitis ... Complex Formation - Complement ... Formation -> Vasculitis ... TerrierBen #Hypocomplementemic
Causes of Hypocomplementemia - CHAMPS Mnemonic C - Cryoglobulinemia (85%), C3 glomerulopathy, cirrhosis H - Heavy Chain deposition
Causes of Hypocomplementemia ... @AnnKumfer #Hypocomplementemia ... #Low #Complement
Vasculitis and Vasculitides - Differential Diagnosis Framework When to Consider Vasculitis: • Purpura, ischemic skin lesions •
often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... against MPO • Complement ... (Low levels mixed ... #rheumatology #classification
IgG4-Related Disease Clinical history: Man, 60 years, multiorgan involvement, unique or multiple inflammatory pseudotumor 4 phenotypes: •
IgG4-Related Disease ... node), high serum IgG4 ... rheumatoid factor), ± hypocomplementemia ... No necrosis, No vasculitis ... with increased IgG4
EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus Clinical Domains: • Constitutional domain: Fever • Cutaneous domain: Non-scarring
EULAR/ACR Classification ... Anticardiolipin IgG ... or anti-ß2GPI IgG ... anticoagulant • Complement ... #EULARACR #Classification
Rapidly Progressive Glomerulonephritis (RPGN) RPGN has three primary pathophysiologic causes differentiated by immunofluorescence Immune Complex Mediated (granular staining):
staining): • Low ... Complement: Post-strep ... Idiopathic • Normal Complement ... Glomerulonephritis #Vasculitis ... differential #diagnosis #algorithm
IGG-4 RELATED DISEASE WHAT? • A chronic, immune-mediated fibroinflammatory disease with tumefactive infiltration of IgG4+ plasma cells
IGG-4 RELATED DISEASE ... infiltration of IgG4 ... aortitis, mimics vasculitis ... - ↑ IgE, ↓ complement ... • Classification
Cryoglobulinemia Summary Cryoglobulins: • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
factor level • Low ... serum C4 complement ... • IgA vasculitis ... • Vasculitis ... diagnosis #types #classification
Cold Agglutinin Disease 3 Types of Cold Sensitive Antibodies: 1. Cold Agglutinins (CAD) 2. Donath-Landsteiner
Cryoglobulins (Vasculitic ... originate from a low-grade ... Donath-Landsteiner (IgG ... temperatures by fixing complement
SLE (Systemic Lupus Erythematosus) Suspect: Clinical evidence of (fatigue, rash, photosensitivity, inflammatory arthritis, weight loss, and fever) and
anti-Smith Ab, low ... complements and ... Skin Disease Classification ... , lymphopenia, low ... RNP antibodies, Complement
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