What does pulmonary artery segment protrusion mean?

Pulmonary artery segment protrusion is the manifestation of pulmonary hypertension, which refers to the persistent increase of pulmonary artery pressure caused by various reasons. When it exceeds the normal maximum value, it is pulmonary hypertension. Pulmonary hypertension has no obvious conscious symptoms in the early stage. Sometimes, although pulmonary hypertension is easy to cause right ventricular hypertrophy and chronic hypertensive pulmonary heart disease, the symptoms are not necessarily significant, but gradually show shortness of breath, fatigue, dyspnea, or cough, palpitations, hoarseness and other manifestations between the ages of twenty and forty. Due to reduced cardiac output, cold limbs, thin pulse, peripheral cyanosis, angina pectoris, syncope, etc. Cyanosis is not severe in the early stage, but significant cyanosis can be shown in the case of right-to-left shunt.