Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A PICC line terminates in the upper superior vena cava . A biliary catheter is visualized in the partly imaged right upper quadrant of the abdomen . The lung volumes are low . The cardiac , mediastinal and hilar contours appear stable . There is no pleural effusion or pneumothorax . Thick band - like opacities are present at each lung base ; although not specific , these are most suggestive of atelectasis . A calcified nodule projects over the right lateral mid lung . Bony structures are unremarkable .
    OUTPUT:
    
Dense band - like opacities in the lower lungs which have a morphology most suggestive of atelectasis . If pneumonia is a continuing possible clinical concern , a short - term followup radiographs may be helpful and pneumonia is not entiredly excluded .