Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A moderate right pleural effusion is minimally increased compared with the immediate prior study with unchanged associated compressive atelectasis and rounded right midlung atelectasis . Small amount of air at the level of the horizontal fissure is unchanged from prior studies . There is no left - sided pleural effusion . No pulmonary edema . Biapical scarring is similar . The cardiomediastinal silhouette is stable . A left pectoral dual - chamber pacemaker and its leads project in unchanged location . There is no pneumothorax .
    OUTPUT:
    
1 . Slight interval increase in moderate right pleural effusion with associated atelectasis . Superimposed consolidation at the right lung base is difficult to exclude .