Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The study is somewhat limited due to patient rotation . The heart remains moderate to severely enlarged . Mediastinal widening is unchanged compared to the prior studies . The pulmonary vascularity is normal . Small right pleural effusion has decreased in the interval . Left lung is clear . There is minimal atelectasis in the right lung . No pneumothorax is present . No acute osseous abnormality is seen .
    OUTPUT:
    
Interval decrease in size of small right pleural effusion with mild right basilar atelectasis .