Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The known dialysis catheter is unchanged , with its tip in the right atrium . There is mild cardiomegaly and evidence of central pulmonary vascular congestion , new since ___ . The lungs are otherwise clear without focal consolidation , pleural effusion , or pneumothorax . Mild bibasilar atelectasis .
    OUTPUT:
    
Mild cardiomegaly and evidence of central pulmonary vascular congestion , new since ___ .