Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is increased opacity over the left mid lung in the perihilar region , concerning for pneumonia . Blunting of the right costophrenic angle appears chronic and unchanged compared to ___ . No pleural effusion or pneumothorax is detected . Heart size is mildly enlarged and similar compared to prior . The aorta is calcified and tortuous .
    OUTPUT:
    
Left mid lung opacity , concerning for pneumonia . Follow - up radiograph after treatment is recommended to ensure resolution and exclude underlying pathology . Findings and recommendations were discussed with ___ by ___ ___ by telephone at 9 : 10 p .m . on ___ at the time of initial review of the study after attending radiologist review .