Difference between revisions of "Skin Nutritional - Pathology"

Revision as of 12:26, 29 October 2008

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

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

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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
+*'''In ruminants''':
+**Grossly: alopecia, crusts and scales on face, neck and distal extremities and mucocutaneous junctions
+**Microscopically: parakeratosis, sometimes hyperkeratosis
+===Copper deficiency===
+===Vitamin A deficeincy===
+===Vitamin E deficiency===