Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low which accentuates the heart size and pulmonary vasculature . Heart size is difficult to evaluate in the presence of a moderate - sized right - sided pleural effusion which appears to have a small loculated fissural component unchanged appearance from prior study along with compressive right base consolidation which likely represents atelectasis however infection can not be excluded given the appropriate clinical circumstance . Very small left basilar atelectasis however the left costophrenic sulcus is not imaged . There is mild increased asymmetric density of the right lung field which is likely layering fluid . The superior lung fields are clear . There is no pneumothorax .
    OUTPUT:
    
Moderate right pleural effusion similar in appearance to prior study with adjacent right base consolidation likely compressive atelectasis however infection can not be excluded given the appropriate clinical circumstance .