Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . The mediastinal and hilar contours are unremarkable . Small bilateral pleural effusions , left greater than right , are present . A retrocardiac opacity may represent an area of infection or aspiration pneumonia . Additionally , peribronchial cuffing and increased interstitial markings are noted primarily within the right upper lobe , but also to a lesser degree within the left upper lung field . No pneumothorax is identified . There are no acute osseous abnormalities . Multilevel degenerative changes of the thoracic spine are present .
    OUTPUT:
    
1 . Small bilateral pleural effusions , left greater than right , with retrocardiac consolidative opacity , which could represent area of pneumonia or aspiration . 2 . Mild peribronchial cuffing and increased interstitial markings within the upper lobes , right greater than left , may reflect mild vascular congestion or an infectious process .