Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is again significantly rotated . Indistinctness of the diaphragm and haziness of the bilateral lung bases is new , possibly positional for related to atelectasis or pleural fluid . No pneumothorax . Heart size is normal . Large hiatal hernia is poorly evaluated given patient positioning . An endotracheal tube terminates 4 .9 cm above the carina .
    OUTPUT:
    
Indistinctness of the diaphragm and haziness at the bilateral lung bases is likely positional , but possibly related to pleural fluid or atelectasis .