Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube is low lying , terminating approximately 1 .6 cm from the carina . Low lung volumes are present . This accentuates the cardiac silhouette size which is borderline enlarged . Mediastinal contour is also widened , but again this may be due to low lung volumes and supine positioning . There is crowding of the bronchovascular structures without overt pulmonary edema . Patchy opacities are noted within the left upper lobe and left lung base . No large pleural effusion or pneumothorax is identified . A VP shunt catheter is noted coursing along the right neck and chest . No acute osseous abnormalities are identified .
    OUTPUT:
    
1 . Low lying endotracheal tube . Recommend withdrawal by approximately 2 cm for optimal positioning . 2 . Low lung volumes . Patchy left upper and left basilar opacities may reflect areas of atelectasis though aspiration or infection are not excluded .