T'he first case of Pulmonary Adenomatosis ("jaagsiekte") in Rio Grande do Sul, Brazil in a two year old Karakul ewe, descendent from German impor ted sheep is reported. The ewe died due to ruminal lactic acidosis, thus the pulmonary lesions were incidental necropsy findings. Macroscopically, two whitish nodular areas of approximately 4 and 6cm in diameter respectively were found, which corresponded microscopically to well differentiated epithelial growth, with papillary projections into the alveolar and bronquiolar lumina. Serological and histopathological signs of Maedi/Visna Virus infection were not found. The diagnosis of pulmonary adenomatosis was based on histopathology.
pulmonary adenomatosis; sheep; "jaagsiekte", retrovirus
