Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right - sided tunneled hemodialysis catheter terminates at the right atrium . There is a left - sided pacemaker generator projecting leads into the right atrium and ventricle . The patient is status post median sternotomy and CABG . The aorta is moderately calcified and tortuous . There is no pneumothorax or pleural effusion . The diaphragms are flattened , reflecting chronic obstructive pulmonary disease . Increased bibasilar linear and hazy opacity may reflect a combination of atelectasis and interstitial edema . Slightly increased density at the right base may reflect an early consolidation . There is moderate atelectasis of the right middle lobe .
    OUTPUT:
    
Appearance of chronic obstructive pulmonary disease , with atelectasis and edema at the bases . Possible early consolidation at the right base .