ULTRASOUND APPEARANCE OF NORMAL LUNG BORDERS AND ADJACENT VISCERA IN THE HORSE*

Abstract

B‐mode ultrasound was utilized to define the borders of the lungs and surrounding viscera in a normal horse. Characteristic reverberation artifacts produced by the air‐filled lung allowed accurate definition of the lung borders. The liver on the right and the spleen on the left were the predominant parenchymal organs identified. These two organs were seen adjacent to the lung and medial to the diaphragm. Recognition of the liver and spleen is important in evaluating equine pleural effusion.