Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal chest radiograph demonstrates a right - sided subclavian venous catheter terminating at the cavoatrial junction . Endotracheal tube terminates at the level of the clavicles . Enteric catheter courses below the left hemidiaphragm terminating in the body of stomach . Cardiomediastinal and hilar contours are unremarkable . Left lung base opacification is poorly assessed given patient positioning , but may reflect combination of atelectasis and effusion . Underlying infectious process can not be excluded .
    OUTPUT:
    
Medical support devices are well positioned . Left lower lung opacification evident .