Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . Multiple sternal wires , a prosthetic valve , and left - sided pacemaker are unchanged in position . A left thoracostomy tube is unchanged in position . There is no obvious pneumothorax . A diffuse left hemithoracic opacity is unchanged . There is new mild pulmonary vascular congestion and minimal edema within the right lung . There is no right pleural effusion . A right - sided IJ central venous catheter terminates at the cavoatrial junction .
    OUTPUT:
    
1 . Unchanged opacity across the left hemithorax . 2 . Mild central pulmonary vascular congestion with minimal edema within the right lung .