The pulmonary trunk and main pulmonary arteries are dilated. The pulmonary trunk-to-aortic ratio is 38:25, approximately 1.5:1.
No evidence of pulmonary thromboembolic disease.
The trachea and the oesophagus are in the normal position. There are no enlarged lymph nodes. The lungs are clear and normal. The anterior, middle and posterior mediastinum is normal.