Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is slightly increased compared to the prior exam from ___ . The hilar and mediastinal contours are normal . There may be a small right pleural effusion , with mild bibasilar atelectasis . No definite focal consolidations concerning for pneumonia are identified . There is no evidence of a pneumothorax .
    OUTPUT:
    
1 . New small right pleural effusion . 2 . Mild cardiomegaly , slightly increased compared to the prior exam from ___ .