Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An endotracheal tube tip is 3 .7 cm above the carina . There is no evidence of displaced rib fracture or pneumothorax . There is diffuse asymmetrically distributed central opacification , left greater than right . There are no large pleural effusions . The cardiomediastinal and hilar contours demonstrate tortuosity of thoracic aorta and enlargement of the main pulmonary artery . There is mild cardiomegaly . Incidentally noted are two IVC filters projecting over the mid abdomen .
    OUTPUT:
    
1 . Endotracheal tube in standard position 3 .8 cm above the carina . 2 . No evidence of pneumothorax . 3 . Diffuse asymmetrically distributed left greater than right central opacification , for which differential includes an acute pulmonary edema , hemorrhage , aspiration or infection .