Difference between revisions of "Skin Nutritional - Pathology"
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+ | {{toplink | ||
+ | |backcolour = FFCCCC | ||
+ | |linkpage =Integumentary System - Pathology | ||
+ | |linktext =Integumentary System | ||
+ | |maplink = Integumentary System (Content Map) - Pathology | ||
+ | |pagetype =Pathology | ||
+ | }} | ||
+ | <br> | ||
− | + | ===General=== | |
+ | *Often combined deficiency which improves when animal is fed a balnced diet | ||
+ | *Sometimes caused by change in demand (pregnancy, growth, cold weather) or due to disease | ||
+ | |||
+ | ===Zinc deficiency=== | ||
+ | *Mainly in dogs and pigs, sometimes ruminants | ||
+ | *'''In pigs''': | ||
+ | **Grossly:circumscribed reddened papules and plaques, thick crusting and scaling, fissures along ventral abdomen and medial thighs, sometimes generalised | ||
+ | **Microscopically: parakeratosis, acantosis, pseudoepitheliomatous hyperplasia, hypergranulosis | ||
+ | **Commonly secondary bacterial dermatitis | ||
+ | *'''In dogs''': | ||
+ | **Siberian huskies and Alaskan malamutes: | ||
+ | ***Grossly: scales and crusts around mouthm chin, eyes, joints, prepuse, scrotum, vulva | ||
+ | ***Microscopically: diffuse hyperkeratosis extending to follicles, superficial perivascular dermatitis with eosinophils | ||
+ | **Rapidly growing puppies: | ||
+ | ***Grossly: scaly plaques on skin, nasal planum and foot pads | ||
+ | *'''In ruminants''': | ||
+ | **Grossly: alopecia, crusts and scales on face, neck and distal extremities and mucocutaneous junctions | ||
+ | **Microscopically: parakeratosis, sometimes hyperkeratosis | ||
+ | |||
+ | |||
+ | ===Copper deficiency=== | ||
+ | *Hair or wool depigmentation | ||
+ | **Black sheep develop bands of lighter colouring | ||
+ | **Cattle develop spectacle pattern of depigmentation around eyes) | ||
+ | **Coat colour may change from black to reddish brown | ||
+ | |||
+ | ===Vitamin A deficiency=== | ||
+ | |||
+ | ===Vitamin E deficiency=== | ||
+ | *Steatitis may develop in cats fed excess fatty acids or with vitamin E deficincy | ||
+ | *Grossly: firm, yellow or orange nodules in subcutaneous tissue | ||
+ | *Microscopically: nodular to diffuse granulomatous panniculitis, macrophages and giant cells, oedema, fat necrosis, neutrophils and ceroid pigment |
Revision as of 12:33, 29 October 2008
This article is still under construction. |
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General
- Often combined deficiency which improves when animal is fed a balnced diet
- Sometimes caused by change in demand (pregnancy, growth, cold weather) or due to disease
Zinc deficiency
- Mainly in dogs and pigs, sometimes ruminants
- In pigs:
- Grossly:circumscribed reddened papules and plaques, thick crusting and scaling, fissures along ventral abdomen and medial thighs, sometimes generalised
- Microscopically: parakeratosis, acantosis, pseudoepitheliomatous hyperplasia, hypergranulosis
- Commonly secondary bacterial dermatitis
- In dogs:
- Siberian huskies and Alaskan malamutes:
- Grossly: scales and crusts around mouthm chin, eyes, joints, prepuse, scrotum, vulva
- Microscopically: diffuse hyperkeratosis extending to follicles, superficial perivascular dermatitis with eosinophils
- Rapidly growing puppies:
- Grossly: scaly plaques on skin, nasal planum and foot pads
- Siberian huskies and Alaskan malamutes:
- In ruminants:
- Grossly: alopecia, crusts and scales on face, neck and distal extremities and mucocutaneous junctions
- Microscopically: parakeratosis, sometimes hyperkeratosis
Copper deficiency
- Hair or wool depigmentation
- Black sheep develop bands of lighter colouring
- Cattle develop spectacle pattern of depigmentation around eyes)
- Coat colour may change from black to reddish brown
Vitamin A deficiency
Vitamin E deficiency
- Steatitis may develop in cats fed excess fatty acids or with vitamin E deficincy
- Grossly: firm, yellow or orange nodules in subcutaneous tissue
- Microscopically: nodular to diffuse granulomatous panniculitis, macrophages and giant cells, oedema, fat necrosis, neutrophils and ceroid pigment