Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A very ill - defined opacity in the left lower lateral lung may either represent a prominent part of epicardial fat pad ; however , in an appropriate clinical setting , this may represent an early pneumonia . Followup radiograph in three to four weeks is recommended to look for interval changes . Right lung is clear . Top normal heart size , mediastinal and hilar contours are stable .
    OUTPUT:
    
Ill - defined opacity in the left lower lateral lung could be either a part of prominent epicardial fat pad ; however , in an appropriate clinical setting , early lung pneumonia can not be ruled out . Followup radiograph in three to four weeks is recommended to look for interval changes .