1177 results
Type I Hypersensitivity: Pathogenesis and clinical findings
Definition: Production of lgE Antibodies that bind to harmless allergens
Type I Hypersensitivity ... bind to harmless allergens ... Sensitization" to Allergen ... Initial exposure to allergen ... after clearance of allergen
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Hypersensitivity ... Immunological Target: Allergen ... Ex: Antibiotic allergies ... cephalosporin), Food allergies ... Immunological Target: Allergen
Type IV Hypersensitivity: Pathogenesis and clinical findings
Definition: Unique because it is entirely T-Cell mediated; exposure to
Type IV Hypersensitivity ... mediated; exposure to allergen ... development of allergen-specific ... Initial exposure to allergen ... recognize antigen on allergen's
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
Hypersensitivity ... When the specific allergen ... hay fever, food allergies ... , and drug allergies ... sclerosis #Hypersensitivity
Causes of Urticaria

Immunoglobulin E (IgE) mediated

 - Aeroallergens

 - Contact allergen

 - Food allergens

 - Insect
Aeroallergens - Contact allergen ... - Food allergens ... mediated - Contact allergen
Approach to the diagnosis of chronic hypersensitivity pneumonitis. 
*Consider additional test: bronchoscopy with bronchoalveolar lavage, transbronchial
diagnosis of chronic hypersensitivity ... transbronchial lung ... transbronchial lung ... cHP = chronic hypersensitivity ... #hypersensitivity
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
table of types of hypersensitivity ... Mechanism of Action: Allergen-specific ... Hay fever, Food allergies ... , Drug allergies ... Graft rejection #hypersensitivity
Exposure Related ILD

 • Hypersensitivity pneumonitis
 • Pneumoconioses 
 • Radiation pneumonitis
 • Medication-induced ILD

Andrew Sanchez
Related ILD • Hypersensitivity ... #Interstitial #Lung
Asthma: immunopathogenesis. 
Allergens attach to, and are taken up by, dendritic cells that he the respiratory
Allergens attach ... interaction of the allergen ... degranulate when the allergens
Lung Nodules - Differential Diagnosis by Distribution
 • Centrilobular: Hypersensitivity Pneumonitis, RB-ILD, Pneumoconiosis, Infectious Bronchiolitis, Vasculitis,
Lung Nodules - Differential ... Centrilobular: Hypersensitivity ... BrighamChiefs #Lung