Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube is in standard position terminating approximately 3 cm from the carina . An enteric tube courses below the left hemidiaphragm , into the stomach , with tip off the inferior borders of the film . Lung volumes are low . Heart size is top normal , accentuated by the low inspiratory lung volumes . Mediastinal and hilar contours are unremarkable . Bronchovascular crowding is demonstrated without pulmonary edema . Patchy opacities are noted in the lung bases which may reflect areas of atelectasis though aspiration can not be excluded . There may be a trace left pleural effusion . No pneumothorax is identified . No acute osseous abnormalities detected .
    OUTPUT:
    
1 . Standard positioning of the endotracheal and enteric tubes . 2 . Low lung volumes with patchy bibasilar opacities , possibly atelectasis or aspiration .