Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Leads of a left chest wall pacer terminate in the right atrium and right ventricle . Moderate cardiomegaly is similar to prior and mediastinal contours are stable . Rounded calcification at the base of the heart is consistent with a known left ventricular aneurysm . Bibasilar opacities are consistent with atelectasis . Increased pulmonary vascular markings are consistent with mild congestion . Small right subpulmonic effusion is unchanged . No pneumothorax .
    OUTPUT:
    
1 . Findings suggesting mild pulmonary vascular congestion with unchanged small right subpulmonic effusion . 2 . Bibasilar atelectasis . 3 . Moderate cardiomegaly with unchanged left ventricular aneurysm .