Aneurism in the aorta artery in goats.

Abstract

Two (0.28%) of 726 necropsyed goats presented aneurism In the aorta artery, one being a male with 48 months and the other, a female about 30 months of age. The animals came from a herd in semi-extensive regime, grazing in caatinga vegetation and spending the nights in appropriate pan. Paleness in external mucosa and viscera was observed macroscopically. Large coagula were presented in the thoracic and abdominal cavities, dueto ruptura of the aneurismatic parts of the blood vessels. The lesions of thoracic and abdominal aortas were characterized by wall dilations forming saccular structures, with presence of many coagula and necrotic tissues of about 10 cm to 20 cm of length. Histologically, a destruction in the endotelial tissues, nacrosis and infiltration of leucocytes in the intimate, median, and muscular layers were observed. It is believed that the primary cause of the aneurisms detected in this study would be rolated to the inflamatory processes of other organs.