Abstract
Anomalous origin of the right pulmonary artery from the aorta was detected in a 3.5-year-old cattle. The right pulmonary artery arose from the aortic arch distal to the brachiocephalic trunk. The right pulmonary artery showed no stenosis at its origin and its caliber was as wide as that of the left pulmonary artery. The heart was associated with a double cranial vena cava, aberrant left subclavian artery and patent foramen ovale. Both atria and ventricles showed no abnormalities. The pericardium was retained partially in subcutaneous layer at the left cervicoventral region.
