Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiograph demonstrates newly placed left pectoral dual - chamber pacemaker with leads terminating in standard position within the right atrium and right ventricle . There is re- demonstration of known right thyroid nodule with associated deviation of the trachea to the left . When compared to the chest radiograph dated ___ , there is much decreased pulmonary edema with only mild congestive vascular changes . There is decreased but still moderate pleural effusion at the right lung base with associated opacity , likely atelectasis . The left lower lung opacity has decreased in size , also likely atelectasis . There is no pneumothorax .
    OUTPUT:
    
New dual chamber pacemaker without pneumothorax . Decreased but persistent right pleural effusion .