Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A Swan - Ganz catheter is in unchanged position , ending in the right pulmonary artery . A right ventricular pacer is unchanged . No pneumothorax or pleural effusion identified . Marked cardiomegaly and mild pulmonary vascular congestion are unchanged since 1 day prior . Prominence of the pulmonary artery indicates pulmonary hypertension . There is no overt pulmonary edema .
    OUTPUT:
    
The Swan - Ganz catheter ends in the right main pulmonary artery .