5 results
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Penicillin-induced drug ... complexes • Ex: Systemic ... Lupus Erythematosus ... Syndrome, Contact Dermatitis ... (ie. reaction to
Vesiculobullous Skin Rash - Differential Diagnosis Algorithm
Vesicles Fragile/EasiIy Ruptured - Intraepidermal blisters, possibly crusts/erosions
 - Inflammatory
• Contact dermatitis ... • Bullous systemic ... lupus erythematous ... • Phototoxic drug ... Vesiculobullous #SkinRash
Summary table of types of hypersensitivity reactions. 
Type 1
 - Mediators: lgE
 - Antigen Form: Soluble
Food allergies, Drug ... glomerulonephritis, Systemic ... lupus erythematosus ... Examples: Contact dermatitis ... #reactions #types
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
Hypersensitivity ... allergies, and drug ... lupus erythematosus ... - Contact dermatitis ... Allergy #Diagnosis #Reactions
Erythemas Summarized
Erythema ab igne
 • A dermatosis that results from repeated exposure to heat (fires, heating
Erythema ab igne • A dermatosis ... form of delayed-type ... hypersensitivity ... presenting with erythematous ... malignancies, and drugs