13 results
diagnosis rheumatology hematology management allergy differential disease hypersensitivity pathophysiology reactions table agglutinin anemia champs cold comparison cryoglobulinemia cryoglobulins erythematosus gammopathy
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 ... glomerulonephritis, type ... 1 (50%-80%), type ... @AnnKumfer #Hypocomplementemia ... #Low #Complement
Vasculitis and Vasculitides - Differential Diagnosis Framework When to Consider Vasculitis: • Purpura, ischemic skin lesions •
Vasculitis and Vasculitides ... often involved • Hypocomplementemic ... Urticaria and hypocomplementemia ... against MPO • Complement ... #rheumatology #classification
Hypersensitivity Types and Their Mechanisms Type I - lgE - Soluble antigen - Allergen-specific lgE antibodies bind
II - IgG or IgM ... antigen, leading to complement ... Type Ill - IgG and ... Complement activation ... #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
Summary table of types of hypersensitivity reactions. Type 1 - Mediators: lgE - Antigen Form: Soluble
- Mediators: IgG ... Mechanism of Action: IgG ... antigens, leading to complement ... they activate complement ... allergy #table #classification
Cryoglobulinemia Summary Cryoglobulins: • Cryoglobulins are Igs in the serum that precipitate in vitro at temperatures below
Types: • Type ... • Type III Often ... • Low serum C4 complement ... • Vasculitis ... #classification
IGG-4 RELATED DISEASE WHAT? • A chronic, immune-mediated fibroinflammatory disease with tumefactive infiltration of IgG4+ plasma cells
IGG-4 RELATED DISEASE ... • Pancreas: Type ... aortitis, mimics vasculitis ... - ↑ IgE, ↓ complement ... • Classification
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
Cold Agglutinin Disease 3 Types of Cold Sensitive Antibodies: 1. Cold Agglutinins (CAD) 2. Donath-Landsteiner
Agglutinin Disease 3 Types ... Cryoglobulins (Vasculitic ... Donath-Landsteiner (IgG ... temperatures by fixing complement
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