Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without consolidation or edema . There is a small left pleural effusion , increased in size since ___ . Associated retrocardiac atelectasis is present . There is no pneumothorax . The mediastinal contours are normal . The aorta is tortuous and calcified . The heart size is mildly enlarged , and increased since the prior exam in ___ .
    OUTPUT:
    
1 . Small left pleural effusion with associated left basilar atelectasis . 2 . Mild cardiomegaly , increased from ___ . 3 . No evidence of pulmonary edema .