Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left single - lead cardiac device with tip projecting over the expected region of the right ventricle is unchanged . External material projecting over the right hemithorax limits detailed evaluation of the lungs in this region . Lung volumes are low with bronchovascular crowding . Nonetheless , there is mild central pulmonary vascular prominence and new mild interstitial edema . No pleural effusion . No pneumothorax . Aortic knob calcifications are moderate , unchanged .
    OUTPUT:
    
Pulmonary vascular congestion with minimal interstitial edema .