Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Moderate cardiomegaly is overall stable compared to prior exams dated back to ___ . Large right pleural effusion is overall unchanged compared to the prior study with adjacent consolidation , likely secondary to atelectasis at the right lung base . There is no evidence of a pneumothorax . There is mild left basilar atelectasis . The visualized osseous structures are unremarkable .
    OUTPUT:
    
No change . Large right pleural effusion with adjacent consolidation likely secondary to atelectasis , however an acute superimposed infectious process can not be excluded .