Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right PICC tip terminates in the mid SVC . Lung volumes remain low . The heart size is normal . The aorta remains tortuous . Pulmonary vasculature is not engorged . Patchy opacities are noted in the lung bases , slightly improved compared to the previous examination , and may reflect atelectasis however recurrent aspiration or infection can not be completely excluded . No pneumothorax is detected . There is blunting of the right costophrenic angle which may be due to pleural thickening or a trace right pleural effusion . A balloon projects over the left upper quadrant of the abdomen , possibly from a percutaneous gastrostomy catheter . Spinal fusion hardware in the lumbar spine is incompletely assessed .
    OUTPUT:
    
Patchy bibasilar airspace opacities are improved compared to the previous chest radiograph , and may reflect atelectasis but recurrent aspiration or infection is not excluded . Blunting of the right costophrenic angle may be due to pleural thickening or a trace right pleural effusion .