Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The Swan - Ganz catheter tip is seen in the right superior lobar pulmonary artery 31 mm outside of the cardiomediastinal shadow . Single lead ICD in situ with its lead tip in the right ventricle . Left - sided PICC line in situ with its tip in the proximal SVC . Marked transverse cardiomegaly unchanged . No pulmonary edema . No airspace consolidation . No pleural effusions . No pneumothorax .
    OUTPUT:
    
Cardiomegaly unchanged . No pulmonary edema . Swan - Ganz catheter tip is seen in the right superior pulmonary artery .