Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the chest radiographs obtained ___ , no significant changes are appreciated . Severe cardiomegaly is unchanged . Large hila have proven to be due to a combination of pulmonary arteries and pulmonary veins , better appreciated on CT chest dated ___ . No pulmonary vascular congestion or pulmonary edema . Pleural effusions are small , if any . Lungs are fully expanded and clear without focal consolidations or suspicious pulmonary nodules . No pneumothorax . Median sternotomy wires are well aligned and intact . A single right ventricular pacemaker lead is unchanged position .
    OUTPUT:
    
No radiographic evidence of pneumonia or other acute cardiopulmonary abnormalities .