Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal . The aorta is mildly calcified and tortuous . Again seen are opacities at the right lung base , unchanged since ___ , likely representing atelectasis . No definite consolidations are present . There is no pneumothorax or pleural effusion . Relative upper zone lucency is compatible with known history of COPD . A 6 mm left upper lobe nodule is present .
    OUTPUT:
    
1 . Minimally changed appearance in comparison to the ___ examination . Opacities at the right lung base are likely atelectasis ; however , if there is a concern for pneumonia in this region , a lateral radiograph could be considered for further evaluation . 2 . 6 mm left upper nodule . Followup with CT is recommended on an outpatient basis . The findings of a pulmonary nodule were emailed by Dr ___ to the ___ nursing staff for communication with the patient 's primary care provider ___ ___ .