Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is subtle increased patchy opacity at the right lung base . Left lung is clear . No pleural effusion , pneumothorax , or pulmonary edema is detected . Heart and mediastinal contours are within normal limits .
    OUTPUT:
    
Subtle increased opacity of the right lung base , which could represent aspiration or pneumonia . This finding was discussed with Dr . ___ by Dr . ___ by telephone at 3 :42 p .m . on ___ after attending radiologist review and discovery of this finding .