Topography of cardiac notch and copula pleuraein Caspian miniature horse

Caspian miniature horse is a small breed of horse which was reported for the first time in Iran.difference  in the size of this breed comparing with other breeds of horses makes it probable that there might be some topographical variations.regarding the extend of pleura and the location of cardiac notch of lungs in relation to the ribs and thoracic wall,which is important in echocardiography and diagnostic imaging and clinical examination,lead us to study the topographical position of cardiac notches and copula pleurae in the Caspian miniature horse.