Difference between revisions of "Skin Other - Pathology"
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===Secondary seborrhea=== | ===Secondary seborrhea=== | ||
| + | *Develops secondarily to many types of disease (''e.g.'' [[Skin parasitic - Pathology|ectoparasites]], [[Fungal skin inections - Pathology|fungal infections]], [[Endocrine effects on skin - Pathology|endocrine disease]], internal disease or allergy) | ||
===Sebaceous adenitis=== | ===Sebaceous adenitis=== | ||
==Pigmentation disorders== | ==Pigmentation disorders== | ||
Revision as of 12:02, 30 October 2008
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This article is still under construction. |
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Epidermal growth or differentiation disorders
Seborrheic disease complex
- Abnormal cornification or function of sebaceous glands
- Large amounts of free fatty acids and cholesterol
- Decreased amounts of diester waxes in surface lipids
- Bacterial population changes to pathogenic coagulase positive staphylococci
- Chronic disease affecting mainly dogs, sometimes cats and horses
- Dry form - white to grey scales
- Greasy form - scaly, excess brown to yellow lipids sticking to skin and hair
Primary idiopathic seborrhea
- Abnormal cornification
- Epidermal turnover reduced to about 2/3 of normal
- Microscopically:
- Hyperkeratosis distending follicular ostia causing papillary appearance
- Parakeratosis at edges of follicular ostia
- Congested, oedematous dermal papillae
- Spongiotic epidermis with leukocytes
Secondary seborrhea
- Develops secondarily to many types of disease (e.g. ectoparasites, fungal infections, endocrine disease, internal disease or allergy)