Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a large left - sided pleural effusion combined with atelectasis , which is overall increased in size since the prior study , underlying consolidation is not excluded . There is also a left upper lobe mass measuring up to 3 .8 cm , largely stable from the prior study . The right lung is essentially clear . The cardiac size is again enlarged as is the mediastinal shadow , perhaps reflective of adenopathy .
    OUTPUT:
    
Interval increase in the left - sided pleural effusion and atelectasis , underlying consolidation not excluded . Stable cardiomegaly and widened mediastinum and stable left upper lobe mass .