Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low . Heart size is normal . Mediastinal and hilar contours are within normal limits . Pulmonary vasculature is not engorged . Patchy opacities are noted at the lung bases . Small right pleural effusion is noted with blunting of the posterior costophrenic sulcus on the lateral view . No pneumothorax is present . No acute osseous abnormality is visualized .
    OUTPUT:
    
Low lung volumes with patchy opacities at the lung bases , potentially atelectasis but infection can not be completely excluded in the correct clinical setting . Small right pleural effusion .