5 results
Hypersensitivity: Summary
Type I Hypersensitivity:
 • Immunological Mediator: lgE
 • Immunological Target: Allergen Molecules
 • Ex: Antibiotic
Hypersensitivity ... • Ex: Systemic Lupus ... Erythematosus, ... Syndrome, Contact Dermatitis ... Classification #Diagnosis
Vesiculobullous Skin Rash - Differential Diagnosis Algorithm
Vesicles Fragile/EasiIy Ruptured - Intraepidermal blisters, possibly crusts/erosions
 - Inflammatory
- Differential Diagnosis ... • Contact dermatitis ... Bullous systemic lupus ... erythematous ... Vesiculobullous #SkinRash
Papulosquamous Skin Rash - Differential Diagnosis Algorithm
Erythrematous or violaceous papules & plaques with overlying scale
 •
- Differential Diagnosis ... Algorithm Erythrematous ... Herald's atch • Tinea ... soles • Discoid Lupus ... Papulosquamous #SkinRash
Allopecia - Differential Diagnosis Framework for Hair Loss

Localized / Focal Hair Loss Pattern:
 • Scarring Alopecia:
- Differential Diagnosis ... Folliculitis decalvans, Tinea ... Disease: Discoid lupus ... erythematosus, ... erythematosus,
Hypersensitivity Types and Their Mechanisms
Type I - lgE - Soluble antigen
 - Allergen-specific lgE antibodies bind
Hypersensitivity ... , and systemic lupus ... erythematosus ... - Contact dermatitis ... Pathophysiology #Allergy #Diagnosis