16 results
diagnosis rheumatology differential anemia hemolytic management disease erythematosus lupus monoclonal sle systemic types workup agglutinin autoimmune causes comparison criteria cryoglobulinemia
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 ... TerrierBen #Hypocomplementemic ... Pathophysiology #Rheumatology
Warm vs Cold Autoimmune Hemolytic Anemia Warm Autoimmune Hemolytic Anemia: • Mechanism: IgG and Complement-mediated • Etiology:
• Mechanism: IgG ... and Complement-mediated ... Coombs positive for IgG ... Mechanism: IgM and Complement-mediated ... Hemolytic #Anemia #hematology
Vasculitis and Vasculitides - Differential Diagnosis Framework When to Consider Vasculitis: • Purpura, ischemic skin lesions •
often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... against MPO • Complement ... differential #diagnosis #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 ... workup #treatment #rheumatology
IGG-4 RELATED DISEASE WHAT? • A chronic, immune-mediated fibroinflammatory disease with tumefactive infiltration of IgG4+ plasma cells
IGG-4 RELATED DISEASE ... aortitis, mimics vasculitis ... - ↑ IgE, ↓ complement ... • Classification ... #Management #Rheumatology
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm Extravascular - Spleen and RES-mediated hemolysis -
Differential Diagnosis Algorithm ... Warm AIHA • Cold ... perfringens - Complement-Mediated ... • Cold AIHA ... #Causes #Hematology
EULAR/ACR Classification Criteria for Systemic Lupus Erythematosus Clinical Domains: • Constitutional domain: Fever • Cutaneous domain: Non-scarring
EULAR/ACR Classification ... pericarditis • Hematologic ... Anticardiolipin IgG ... or anti-ß2GPI IgG ... anticoagulant • Complement
Cold Agglutinin Disease 3 Types of Cold Sensitive Antibodies: 1. Cold Agglutinins (CAD) 2. Donath-Landsteiner
Cold Agglutinin ... Cryoglobulins (Vasculitic ... Donath-Landsteiner (IgG ... temperatures by fixing complement ... hemolytic #anemia #hematology
Rapidly Progressive Glomerulonephritis (RPGN) RPGN has three primary pathophysiologic causes differentiated by immunofluorescence Immune Complex Mediated (granular staining):
staining): • Low Complement ... Idiopathic • Normal Complement ... Glomerulonephritis #Vasculitis ... differential #diagnosis #algorithm ... #rheumatology
Subtypes of Serum Proteins Pre-albumin (Transthyretin) Albumin Globulins • Alpha-1: Alpha-1 antitrypsin, Serum amyloid A, Ceruloplasmin, Corticosteroid-binding globulin (Transcortin),
• Gamma: IgM, IgG ... Proteins #Subtypes #algorithm ... #classification ... #Types #hematology
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