Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac enlargement is similar . The mediastinal and hilar contours appear unchanged . There are patchy bibasilar opacities suggesting minor atelectasis or scarring which are quite similar for the most part . A new band - like opacity projecting along the posterior right lower lobe is suggestive of atelectasis , while a pleural effusion has resolved on the left . A small right - sided pleural effusion appears unchanged , however . The pulmonary vascularity is unremarkable .
    OUTPUT:
    
Findings suggestive of bibasilar atelectasis without evidence for pulmonary edema . Very small right - sided pleural effusion , similar to the prior examination , although a left - sided pleural effusion has improved .