Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unchanged . Fiducial marker is noted within a left upper lobe spiculated nodule which was better assessed on the previous CT . Pulmonary vasculature is not engorged . Patchy opacities are seen in the lung bases , improved from previous examinations , more pronounced on the right and likely reflective of atelectasis . Lungs are hyperinflated . No focal consolidation , pleural effusion or pneumothorax is seen , although the medial lung apices are obscured by the patient 's neck . There are no acute osseous abnormalities .
    OUTPUT:
    
Patchy opacities in the lung bases , more pronounced on the right , which may be reflective of atelectasis . Fiducial marker within spiculated nodule in the left upper lobe .