Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest were provided . There is a moderate left pleural effusion , increased since the prior exam . There is a stable small right pleural effusion . The pulmonary vasculature is prominent consistent with pulmonary edema . Opacity in the left lung most likely represents atelectasis . The heart size is top normal and there are aortic knob calcifications . There is no pneumothorax .
    OUTPUT:
    
Increased left pleural effusion and pulmonary edema . Left lung opacity most likely represents atelectasis , although an early developing infiltrate can not be entirely excluded . Recommend repeat radiographs after diuresis to rule out underlying infectious process .