Equine cutaneous gasterophilosis in an era of selective parasite control

Summary For the first time this century, we report tract migration dermatitis provoked by Gasterophilus sp. larvae in horses at a farm Spain where selective parasite control programme has been employed for more than decade. At equine farm, two over 25 years old presented alopecic lesions form of streaks masseteric and maxillary region face. The clinical histological features these animals are described, with dermatological examination revealing presence nonoperculated eggs when appeared. morphology corresponded to G. inermis skin biopsy identified an eosinophilic superficial perivascular dermatitis. were treated once oral ivermectin, achieving complete resolution lesions.