Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube tip is slightly low - lying , terminating approximately 2 .6 cm from the carina . Lung volumes are low . This accentuates the size of the cardiac silhouette which is borderline enlarged . Crowding of the bronchovascular structures is present without overt pulmonary edema . Lungs are clear . No pleural effusion or pneumothorax is identified on this supine exam . No acute osseous abnormalities are visualized .
    OUTPUT:
    
Slightly low lying endotracheal tube with tip terminating approximately 2 .6 cm from the carina . This be withdrawn by approximately 1 cm for optimal positioning . Otherwise , no acute cardiopulmonary abnormality .