Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . Mediastinal and hilar contours are unremarkable . Pulmonary vasculature is normal . Minimal patchy atelectasis is noted in the lung bases . A small right pleural effusion appears to be present . No pneumothorax is identified . There are no acute osseous abnormalities .
    OUTPUT:
    
Mild bibasilar atelectasis with small right pleural effusion .