552 bytes added
, 10:33, 30 June 2010
*Occurs in cattle, sheep, horses, goats, rabbits and other animals
*Host-specific
*[[Psoroptes cuniculi|''Psoroptes cuniculi'']] in ear canals of rabbits, horses, goats and sheep
*[[Psoroptes|''P.equi'']] at base of mane, tail and forelock in horses
*[[Psoroptes ovis|''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[[Category:To_Do_-_Clinical]]