Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is increased size of a moderate right pleural effusion , which may be partially loculated . A small left pleural effusion is unchanged . Opacification at the right lung base is similar or slightly increased from ___ . No new airspace opacity is seen in the left lung . The cardiac silhouette is within normal limits . The mediastinum remains widened with tortuosity of the thoracic aorta and partial calcification of the aortic knob , unchanged from prior studies . Volume loss in the right hemithorax is unchanged . There is persistent gaseous distention of the stomach .
    OUTPUT:
    
Increased size of moderate right pleural effusion from ___ , which may be partially loculated with similar extent of right basilar opacification . In the setting of right - sided volume loss , this most likely represents atelectasis ; however , superimposed infection is not entirely excluded .