O presente trabalho teve como objetivo detectar a presença de Anaplasma marginale, Babesia bovis e Babesia bigemina em bovinos leiteiros da mesorregião central do estado do Espírito Santo, por exames parasitológicos diretos (esfregaço sanguíneo) e sorológicos (Ensaio Imunoabsorção Enzimática - ELISA). Foram colhidas amostras de sangue de 159 bovinos leiteiros provenientes de 6 propriedades rurais, concentradas na mesorregião central do estado do Espírito Santo. O sangue coletado foi armazenado em tubos de EDTA, utilizado para realizar os esfregaços sanguíneos, e em tubos sem anticoagulante, para obtenção do soro. Os soros obtidos foram utilizados para a detecção de anticorpos IgG para A. marginale, B. bovis e B. bigemina. Dos 159 esfregaços sanguíneos analisados, 64 (40,2%) e 11 (6,9%) foram positivos para Anapalsma marginale e Babesia sp., respectivamente. No ELISA das 159 amostras, 9 (5,7%), 59 (37,1%) e 47 (29,5%) foram soropositivas para A. marginale, B. bovis e B. bigemina, respectivamente. Os resultados obtidos, caracterizam as propriedades analisadas da mesorregião central do estado do Espírito Santo, como de instabilidade enzoótica para os agentes da Tristeza Parasitária Bovina (TPB) possuindo alto risco da ocorrência de surtos de anaplasmose e babesiose nestas propriedades.
Heterotopic polyodontia have been described in most domestic species and human. Known as a dentigerous cyst but appropriately called heterotopic polyiodontics, it rarely occurs in horses, however it is easily recognized as a congenital defect. The cysts usually associated with this condition contain part or all of dental structures. The heterotopic tooth or dental structure is usually adhered to the temporal bone and surrounded by a secretory membrane, with a accumulation of exudate and draining tract along the proximal pinna or directly over the cyst. This case report describes in a 2.5-year-old female quarter horse, weighing 430 kg, with a heterotopic polyodontia that contained two easily small’s identifiable dental structures, presented for evaluation of a chronic intermittent mucopurulent exudate discharge from the right sub-auricular region in the mastoid process of the temporal bone and a drainage tract near the right pinna. The diagnosis is established with clinical, radiographic, ultrasound and confirmed by histopathological examination of the structures removed. The cystic capsule was surgically removed, measuring approximately 3.0 x 2.3 cm in diameter, filled with mucopurulent exudate and containing two dental structures within 0.5 cm in diameter and 0.2 cm in diameter. Microscopic examination revealed a cystic area covered by stratified squamous epithelium with a lympho-histio-plasmatic cell infiltrate in the dermis, which was compatible with heterotopic polyodontia. Postoperatively, there were no neuromotor sequelae and wound healing evolved positively.
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