Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patchy left base opacity raises concern for pneumonia . There is also blunting of the left costophrenic angle which may be due to a small trace pleural effusion . Right mid lung linear atelectasis / scarring is seen . There is diffuse prominence of the interstitial markings bilaterally suggesting mild interstitial edema .
    OUTPUT:
    
Patchy left base opacity raises concern for pneumonia . Blunted left costophrenic angle may be due to trace pleural effusion . Diffuse prominence of the interstitial markings bilaterally suggests mild interstitial edema .