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| − | {{unfinished}}
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| − | {{toplink
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| − | |backcolour = FFCCCC
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| − | |linkpage =Integumentary System - Pathology
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| − | |linktext =Integumentary System
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| − | |maplink = Integumentary System (Content Map) - Pathology
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| − | |pagetype =Pathology
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| − | }}
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| − | <br>
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| − | ===General===
| + | #REDIRECT[[:Category:Integumentary System - Nutritional Pathology]] |
| − | *Often combined deficiency which improves when animal is fed a balnced diet
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| − | *Sometimes caused by change in demand (pregnancy, growth, cold weather) or due to disease
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| − | ===Zinc deficiency===
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| − | *Mainly in dogs and pigs, sometimes ruminants
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| − | *'''In pigs''':
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| − | **Grossly:circumscribed reddened papules and plaques, thick crusting and scaling, fissures along ventral abdomen and medial thighs, sometimes generalised
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| − | **Microscopically: parakeratosis, acantosis, pseudoepitheliomatous hyperplasia, hypergranulosis
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| − | **Commonly secondary bacterial dermatitis
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| − | *'''In dogs''':
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| − | **Siberian huskies and Alaskan malamutes:
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| − | ***Grossly: scales and crusts around mouthm chin, eyes, joints, prepuse, scrotum, vulva
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| − | ***Microscopically: diffuse hyperkeratosis extending to follicles, superficial perivascular dermatitis with eosinophils
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| − | **Rapidly growing puppies:
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| − | ***Grossly: scaly plaques on skin, nasal planum and foot pads
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| − | *'''In ruminants''':
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| − | **Grossly: alopecia, crusts and scales on face, neck and distal extremities and mucocutaneous junctions
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| − | **Microscopically: parakeratosis, sometimes hyperkeratosis
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| − | ===Copper deficiency===
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| − | *Hair or wool depigmentation
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| − | **Black sheep develop bands of lighter colouring
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| − | **Cattle develop spectacle pattern of depigmentation around eyes)
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| − | **Coat colour may change from black to reddish brown
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| − | ===Vitamin A deficiency===
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| − | *In dogs
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| − | *Grossly: generalised scaling
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| − | *Microscopically: marked follicular hyperkeratosis
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| − | ===Vitamin E deficiency===
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| − | *Steatitis may develop in cats fed excess fatty acids or with vitamin E deficincy
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| − | *Grossly: firm, yellow or orange nodules in subcutaneous tissue
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| − | *Microscopically: nodular to diffuse granulomatous panniculitis, macrophages and giant cells, oedema, fat necrosis, neutrophils and ceroid pigment
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