Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided dual lumen central venous catheter tip terminates in the proximal right atrium . There are low lung volumes , which accentuates the size of the cardiac silhouette which is borderline enlarged . Mediastinal and hilar contours are normal . There is mild crowding of the bronchovascular structures . No pulmonary edema is detected . Streaky and patchy left basilar opacities may reflect atelectasis but infection or aspiration can not be excluded . There is no pleural effusion or pneumothorax . No acute osseous abnormalities visualized .
    OUTPUT:
    
Streaky and patchy opacities in the left lower lobe may reflect atelectasis , though infection or aspiration can not be excluded .