Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes remain low . Moderate enlargement of the cardiac silhouette persists . Widening of the superior mediastinum appears to be due to mediastinal lipomatosis , as seen on the previous MRI . Pulmonary vasculature is not engorged . No focal consolidation , pleural effusion or pneumothorax is present . No subdiaphragmatic free air is present . There are no acute osseous abnormalities .
    OUTPUT:
    
No acute cardiopulmonary abnormality . No subdiaphragmatic free air .