Doenças da pele em caprinos e ovinos no Semi-árido Brasileiro.

Abstract

Pemphigus foliaceous is an autoimmune disease of the skin affecting mainly dogs and with less frequency in other domestic species. A case of this disease is reported, in the semiarid of Paraiba, Brazil, in a Boer goat with chronic skin lesions with extensive bilateral exfoliatives areas of alopecia, with yellowish crusts affecting the dorsal scapular region, thorax, abdominal wall, croup, hind legs and tail. In the coronary border of the hooves thick crusts were observed. Histologic lesions were hyperkeratosis, spongiosis and intracorneal pustules below the stratum corneum in the stratum granulosum and follicular infundibula. Large number of neutrophils, eosinophils and acantholitic cells were observed in the pustules. The dermis had congestion and mild infiltration by eosinophils, rare plasma cells, lymphocytes and macrophages, mainly in the periphery of follicles. Gross and histologic lesions are characteristic of pemphigus foliaceous, an uncommon disease of goats. This seems to be the first report of pemphigus foliaceous in goats in Brazil.