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| − | ===[[Acanthosis Nigricans]]===
| + | #REDIRECT[[:Category:Integumentary System - Pathology]] |
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| − | ===[[Alopecia and Hypotrichosis]]===
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| − | ===[[Collagen Dysplasia]]===
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| − | ===[[Epidermolysis Bullosa]]===
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| − | ===[[Epitheliogenesis Imperfecta]]===
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| − | ===[[Hypertrichosis]]===
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| − | ===Ichthyosis===
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| − | *Inherited cutaneous disease
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| − | *Occurs in dogs and cattle
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| − | *Grossly:
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| − | **Thickened skin due to [[Skin Glossary - Pathology|hyperkeratosis]]
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| − | **May crack resembling fish scales
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| − | *Increased adherence of keratocytes preventing normal desquamation
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| − | *In cattle occurs in two forms:
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| − | **Ichthiosis fetalis - fatal, stillborn calves or die within days of birth
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| − | **Ichthiosis congenita - folded and thickened skin, fissures and partial [[Skin Glossary - Pathology|alopecia]]
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| − | [[Category:Integumentary System - Developmental Pathology]]
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| − | ===Porcine Juvenile Pustular Psoriasiform Dermatitis===
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| − | *Also called '''Pityriasis Rosea'''
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| − | *Occurs in pigs
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| − | *Symmetric lesions on the abdomen, loin and medial thigh
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| − | *Start as small [[Skin Glossary - Pathology|papules]] covered by brown [[Skin Glossary - Pathology|crusts]]
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| − | *-> lesions join and spread -> umbilicated [[Skin Glossary - Pathology|plaques]] containing white centres with erythematous and scaly borders
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| − | *Similar to [[Skin Infectious - Pathology|dermatophytosis]]
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| − | *Histologically:
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| − | **Epidermal hyperplasia, [[Skin Glossary - Pathology|parakeratosis]], epidermal [[Skin Glossary - Pathology|pustules]] and superficial perivascular dermatitis
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| − | *For more detail see [[Porcine Juvenile Pustular Psoriasiform Dermatitis]]
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| − | [[Category:Integumentary System - Developmental Pathology]]
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| − | ===Zinc-related disorders===
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| − | *Occurs in Bullterriers and calves
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| − | *Resolves with zinc supplementation in calves but not dogs
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| − | *In dogs:
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| − | **Fatal acrodermatitis
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| − | **Lesions start between digits and on foot pads -> severe interdigital pyoderma -> [[Skin Glossary - Pathology|paronychia]] and [[Skin Glossary - Pathology|hyperkeratosis]] of pads
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| − | **May also occur on pinnae, elbows, muzzle, hocks or become generalised with [[Skin Glossary - Pathology|crusting, ulceration]] and secondary pyoderma
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| − | **Histologically:
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| − | ***Hyperkeratosis and bacterial pustular dermatitis
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| − | [[Category:Integumentary System - Developmental Pathology]]
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