Three cases of Eosinophilic Dermatitis in Holstein-Friesian cattle

Abstract

Three Holstein Friesian cows aged 10 to 44 month old showed systemic and nodular dermatitis in the summer of 1990 and 1991, and the recovery was seen within a week after administration of adrenocorticoids and antihistaminics. Biopsy revealed incrustation of the epidermis and degeneration of collagen fibers with a considerable infiltration of eosinophiles in the dermis, suggesting allergic etiology.