Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The endotracheal tube ends 4 cm above the carina . A nasogastric tube ends in the stomach . There is bilateral patchy airspace opacity , greater in the left lung than in the right lung , which may represent aspiration or infection . There is no large pleural effusion or pneumothorax . The aortic knob is calcified . The heart size is normal . There is no free air beneath the right hemidiaphragm .
    OUTPUT:
    
The endotracheal tube ends 4 cm above the carina . Bilateral patchy , left greater than right , airspace consolidation , in the bilateral lower lobes , likely represents aspiration and / or infection .