Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs again demonstrate a mildly enlarged heart with normal mediastinal contours and a lobulated appearance of the mediastinum and hila , consistent with known lymphadenopathy . There is no focal opacity concerning for pneumonia . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
1 . Mild cardiomegaly and a lobulated appearance of the mediastinum and hila , consistent with known lymphadenopathy . 2 . Clear lungs .