Pênfigo foliáceo em cabra Boer

Abstract

Pemphigus foliaceous is an autoimmune disease of the skin affecting mainly dogs and, with less frequency, 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, hindlimbs and tail. On the coronary band of the hoofs, thick crusts were observed. Microscopiacally, there were hyperkeratosis, spongiosis, intracorneal and sucorneal pustules affecting the epidermis and follicular infundibula. Large number of neutrophils, eosinophils and acantholitic cells were observed in the pustules. The dermis had congestion and mild infiltration of 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.