Aspectos clínicos, diagnóstico e evolução de um cão com demodicose generalizada: relato de caso

Abstract

Canine demodicosis is an inflammatory disease of parasitic origin caused by the abnormal multiplication of the commensal mites Demodex spp. This disease can be classified as localized or generalized according to the distribution of lesions and as juvenile or adult by age group. The present study aimed to describe a generalized demodicosis condition caused by Demodex spp in a canine treated at a clinic located in the city of São Luís - MA. The patient had a history of skin disease for 6 months, and had been treated with antibiotics before, but without definitive clinical improvement and resolution of the case. The dermatological evaluation indicated alopecic areas, edematous and erythematous lesions, pruritus, crusts, lichenification by the animal's body, mainly in the interdigital, digital and pelvic regions. Complementary tests were requested, such as blood count, cytology and deep skin scraping, serological test for canine visceral leishmaniasis and fungal culture. The blood count showed leukocytosis, the serological result was negative for leishmaniasis. Cytology showed bacterial growth, fungal culture showed growth of Microsporum canis and deep skin scraping detected the presence of Demodex spp. After confirming the diagnosis, the therapy instituted was based on the oral administration of sarolaner 10 mg every 30 days for 6 months, for the presence of bacteria, cephalexin 300 mg was prescribed at a dose of ½ tablet every 12 hours for 28 days, for topical therapy, the use of 2% chlorhexidine-based shampoo and 2.5% miconazole associated with dermatological ointment with ketaconazole and niamycin and chlorhexidine-based solution was indicated. After the end of the therapeutic protocol, the tutor reported evident clinical improvement in the animal, then skin scrapings were performed again, attesting to the absence of mites, in accordance with the remission of the presented condition.