Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is stable . The hilar and mediastinal contours are stable and within normal limits . New from the prior examination is right lower lobe and right middle lobe opacity which reflects a combination of pleural effusion and collapse . . There is a minimal atelectasis at the left base . There is no pulmonary edema . Pneumothorax .
    OUTPUT:
    
Opacity involving the right middle lobe and right lower lobe represents a combination of volume loss and layering pleural effusion . Minimal left basal atelectasis . Right lower lobe pneumonia should be considered in the appropriate clinical setting .