Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Triple - lead left - sided AICD is again seen with leads extending to the expected position of the right atrium , right ventricle , and coronary sinus . The lead extending to the coronary sinus , the distal aspect of which is partially obscured by the overlying battery pack . There are extremely low lung volumes that accentuate the bronchovascular markings . The left lung base is obscured by patient 's overlying battery packs and not well evaluated . Right basilar atelectasis is seen . There is blunting of the right costophrenic angle , which may be due to small pleural effusion . Aortic knob calcification is again seen . The cardiac silhouette is grossly stable . There is gaseous distention of the stomach and possibly the colon .
    OUTPUT:
    
Suboptimal evaluation of the left mid to lower lung due to overlying battery pack . If this is areas of high clinical concern , consider repeat with re-positioning of the patient . There are extremely low lung volumes . Right basilar atelectasis is seen . Blunting of the right costophrenic angle could be due to small pleural effusion . Gaseous distention of the stomach and possibly of the bowel .