Changes

==Pathogenesis==

==Pathogenesis==

*Epidermal hyperplasia ([[Skin Glossary - Pathology|hyperkeratosis, parakeratosis, acanthosis]]) and [[Inflammation - WikiBlood|inflammation]]

*Epidermal hyperplasia ([[Skin Glossary - Pathology|hyperkeratosis, parakeratosis, acanthosis]]) and [[:Category:Inflammation|inflammation]]

*Superficial perivascular dermatitis -> exocytosis (migration through epidermal layers) -> intracorneal microabscesses

*Superficial perivascular dermatitis -> exocytosis (migration through epidermal layers) -> intracorneal microabscesses

**Alopecia due to broken hair shafts and hairs lost from inflammed follicles

**Alopecia due to broken hair shafts and hairs lost from inflammed follicles

**Follicular papules and pustules

**Follicular papules and pustules

**Peripheral red ring ('''ringworm''') due to dead fungi in areas of [[Inflammation - WikiBlood|inflammation]] at centre of lesions and viable fungi peripherally

**Peripheral red ring ('''ringworm''') due to dead fungi in areas of [[:Category:Inflammation|inflammation]] at centre of lesions and viable fungi peripherally

*More common in housed animals, rather than animals turned out to pasture

*More common in housed animals, rather than animals turned out to pasture