Eosinophilic plaques as erythematous erosive lesion of the epidermis in cats with otodectosis of the ear

In the past few years, against the background of otalgia, cats often develop an erythematous-erosive lesion of the epidermis as one of the forms of the eosinophilic granuloma complex. The study was conducted for 4 years on the basis of the social veterinary office "Pushok" (Murom, Vladimir region). During this period, 117 cats were identified with eosinophilic plaques against the background of erythematous-erosive lesions of the epidermis in ear diseases, of which 96 cats had eosinophilic plaques, 13 had eosinophilic linear granuloma, and 8 had an indolent ulcer. Eosinophilic plaques were recorded in females in 54% of cases, in males in 46% of cases. Until 8 months of age, eosinophilic plaques were not detected in cats with diseases of the ears; in 5% of cases, the pathology was observed in animals aged 8-12 months, in 50% of cases - at the age of 1 to 2 years, in 31% - from 2 to 5 years, and in 22% of cases - in cats older than 5 years. The occurrence of the disease in 21% of cases was noted in outbred cats, in 18% in Scottish cats and in 15% of cases in Maine Coons. More than 3 times more often lesions were observed in cats with active daily exercise (53%) than in cats kept without walking (16%). In 53% of cases, the incidence was recorded in the spring-summer period. Thus, 82% of cases of ear diseases in cats were accompanied by the formation of eosinophilic plaques, the disease most clearly manifested itself in outbred cats, cats of 1-2 years of age, with free-range content in the spring and summer.