4 results
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
When the specific allergen ... antigen, leading to complement ... Complement activation ... Classification #Pathophysiology ... #Allergy #Diagnosis
Rapidly Progressive Glomerulonephritis (RPGN)
RPGN has three primary pathophysiologic causes differentiated by immunofluorescence

Immune Complex Mediated (granular staining):
Rapidly Progressive ... three primary pathophysiologic ... staining): • Low Complement ... RPGN #Rapidly #Progressive ... 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 ... dysfunction PATHOPHYSIOLOGY ... inflammation -> progressive ... - ↑ IgE, ↓ complement
Type II Hypersensitivity: Pathogenesis and clinical findings
Definition: When antigens bind to the body's cell surfaces, forming
autoimmune antibodies (IgG ... activates the complement ... HypersensitivityReaction #Allergy ... #Immunology #pathophysiology