Skin Environmental - Pathology
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Chemical damage
Contact Dermatitis
Ergot Poisoning
Fescue Poisoning
Selenium Poisoning
Physical damage
Acral Lick Dermatitis
Callus
Feline Psychogenic Alopecia
Injection Site Reaction
Intertrigo
Pyotraumatic Dermatitis
Radiation Damage
Low Temperature Damage
=High Temperature Damage
Sunlight damage
- Transient erythema may develop into sunburn erythema (warmth, swelling, pain)
- Diffusion of inflammatory mediators (e.g. cytokines) from damaged keratinocytes and endothelial cells
- Photooxidation of existing melanin -> pigment darkening
- Melanogenesis
- Immune responses of skin are reduced by UV light