Aspectos anatomopatológicos através da imagem ultra-sonografia e biópsia percutânea guiada do baço de cães infectados por Leishmania (L.) chagasi no Município de São Luis - MA

Abstract

Leishmaniosis is an antropozoonosis caused by an intracellular protozoan parasite, that causes a wide spectrum of diseases in humans and dogs worldwide. In those areas, the dogs are described as natural reservoirs of the parasite. In visceral leishmaniasis, the spleen is one of the several hematopoietic and immunocompetent organs involved. The objective was to describe the anatomopathological aspects by ultrasonographic appearance of canine spleen with leishmaniase disease and to test the accuracy of the percutaneous ultrasound-guided biopsy technique with a not invasive method in the diagnostic complementation of this illness. 30 adult dogs have been studied, without age distinction or sex, subdivided in two groups of 15 animais between seropositive and seronegative for Leishmania (L.) chagasi, proceeding from São Luís-MA. Considering ultrasonographic findings of the spleen to the groups of the animais seropositive and seronegative was possible to identify and characterize the image however as for the size, contour, architecture and parenchyma echotexture. On the other hand the spleen ultrasound-guided biopsy in parenchyma revealed a useful safe and diagnostic tool, offering satisfactory sample to the tissue evaluation contributing for the identification of the parasite as well as of suggestive histological alterations of leishmaniose..