Psoroptic Mange
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Caused by Psoroptes
- Occurs in cattle, sheep, horses, goats, rabbits and other animals
- Host-specific
- Psoroptes cuniculi in ear canals of rabbits, horses, goats and sheep
- P.equi at base of mane, tail and forelock in horses
- P.ovis in sheep (sheep scab)and cattle
- Thickened skin and dry scales and crusts
- Starts at withers and spreads due to self trauma
- Microscopically:
- Spongiotic, hyperplastic or exudative superficial perivascular dermatitis
- Eosinophils