Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to chest radiograph from 1 day prior , tracheostomy remains in good position . Right - sided PICC line terminates in the low SVC . Mild bibasilar opacities are stable and can represent aspiration in this clinical setting . No pulmonary edema . No pleural effusions or pneumothorax .
    OUTPUT:
    
Mild bibasilar opacities in the dependent portions of the lungs , can reflect aspiration pneumonia , bettter demonstrated on prior abdominal CT .