Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Cardiac silhouette size appears mild to moderately enlarged . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is not engorged . Patchy and linear opacities are noted in the lung bases . There are small bilateral pleural effusions . No pneumothorax is detected . No acute osseous abnormality is present . Gaseous distention of colonic loops of bowel are seen in the left upper quadrant of the abdomen .
    OUTPUT:
    
Bibasilar patchy and linear opacities may reflect areas of atelectasis though infection or aspiration can not be excluded . Small bilateral pleural effusions .