Dilatation of the pulmonary artery segments represents increased pressure in the pulmonary arteries, and the electrocardiogram will usually show a rightward deviation and indicate enlargement of the right ventricle. This condition is usually considered in the presence of lung disease, congenital heart disease, and rheumatic heart disease. If the bulge in the pulmonary segment is mild, the patient may not have any symptoms. If the bulge is more pronounced, the patient may have a prolonged cough, chest tightness, panic attacks, and cyanosis after exercise. The bulging of the pulmonary artery segment itself is a manifestation of pulmonary congestion, which can also indicate some disease conditions. Therefore, the presence of this state in the examination should be screened for pulmonary or cardiac diseases and further diagnosis or treatment should be carried out based on the results of the examination.