Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest were acquired . Lung volumes are low , causing exaggeration of the heart size and accentuation of the pulmonary vasculature . There is subsegmental left lower lung atelectasis . There is also minimal right lower lung atelectasis . The lungs are otherwise clear . There is no evidence of pulmonary edema . The heart size is top normal . The mediastinal contours are normal . Note is made of a small left pleural effusion , best seen on the lateral projection . No definite right pleural effusion . No pneumothorax is seen .
    OUTPUT:
    
1 . Small left pleural effusion with subsegmental left lower lung atelectasis . 2 . No evidence of pulmonary edema .