Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single lead left - sided pacemaker is again seen with lead extending to the expected position of the right ventricle , very distal aspect of the lead is not well seen due to underpenetration . There is mild left base atelectasis . No focal consolidation is seen . There is no pleural effusion or pneumothorax . Previously seen asymmetric pulmonary edema and residual abnormality in the right lung on the prior study have resolved in the interval . The cardiac silhouette is top - normal . Mediastinal contours are stable .
    OUTPUT:
    
No acute cardiopulmonary process .