Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Overlying EKG leads noted . Lung volumes are low . Minimally increased opacity is seen projecting over the left lower lung which could represent aspiration or pneumonia . Bronchovascular crowding is noted in the right lower lung . No large effusion or pneumothorax . The heart size appears stable . Bony structures are intact . No mediastinal abnormalities . Chronic left AC joint separation noted .
    OUTPUT:
    
New subtle opacity in the left lower lung could represent pneumonia or aspiration . Chronic left AC joint separation .