Heart

Posterior margin of heart is formed by left atrium and left ventricle.

• Left lung is in contact with posterior margin of heart

• Esophagus is indented by left atrium.

Anterior margin of heart is formed by right ventricle and pulmonary outflow tract

• Right lung is in contact with anterior margin of heart

Chamber enlargemnt

• Left atrial enlargement

• Left ventricular enlargement

• Right ventriclar enlargement

Projections of

• Aortic valve

• Mitral valve

• Pulmonary valve

Patent ductus