Dermatitis
Framing
- Dermatitis (eczema) describes a group of inflammatory skin conditions sharing epidermal barrier disruption and an inflammatory infiltrate, but with distinct triggers and mechanisms - atopic (intrinsic barrier dysfunction plus Th2-driven inflammation), contact (allergic or irritant, exogenous trigger-driven), seborrhoeic (Malassezia-associated), and stasis (venous insufficiency-driven)
- Distinguishing the specific dermatitis subtype matters because management differs substantially - allergen avoidance for allergic contact dermatitis, barrier repair/anti-inflammatory treatment for atopic dermatitis, antifungal-containing preparations for seborrhoeic dermatitis, and compression/venous management for stasis dermatitis
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