Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac , mediastinal and hilar contours are normal . Pulmonary vasculature is not engorged . Streaky and patchy right basilar opacities could reflect atelectasis , but infection is not completely excluded . There is a small right pleural effusion . Left lung is clear . No pneumothorax is identified . No acute osseous abnormalities are detected .
    OUTPUT:
    
Patchy right basilar opacities could reflect atelectasis , but infection is not completely excluded in the correct clinical setting . Small right pleural effusion .