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| − | ===Scabies=== | + | ===[[Scabies]]=== |
| − | *Caused by [[Sarcoptes|''Sarcoptes scabiei'']]
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| − | *Highly contagious
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| − | *Mainly in pigs, dogs, also horses, cattle, sheep, goats and cats
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| − | *Intense pruritus due hypersensitivity to mites borrowing through stratum corneum
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| − | *Usually starts with external pinnae -> head -> neck -> generalised
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| − | *Grossly:
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| − | **Erythematous [[Skin Glossary - Pathology|macules, papules, crusts]]
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| − | **If chronic -> [[Skin Glossary - Pathology|lichenified]], hairless
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| − | *Microscopically:
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| − | **Hyperplastic, spongiotic, superficial perivascular dermatitis
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| − | **Crusting, eosinophil infiltration
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| − | **Mites are not commonly seen, but eggs and feces may be found in stratumn corneum
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| | ===Trombiculidiasis=== | | ===Trombiculidiasis=== |