Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: 2 views were obtained of the chest . The lungs are well expanded with nodular opacities in the mid - to - lower lungs , right greater than left , decreased in conspicuity from the ___ examination . No new consolidation , pleural effusion or pneumothorax is identified . The heart and mediastinal contours are unchanged .
    OUTPUT:
    
No acute process with slightly decreased appearance of the middle lobe and lingular nodules in keeping with known chronic MAC infection .