Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to chest radiographs from ___ , allowing for differences in technique , left - sided moderate pleural effusion has reaccumulated , though not to the extent seen on pre thoracentesis radiographs water ___ . Tiny right pleural effusion persist . Lingular opacity appears more confluent and is concerning for early developing consolidation . Retrocardiac opacity has worsened and likely reflects atelectasis , though infection or aspiration can not be excluded . The right lung is clear . Heart size , which difficult to assess the setting of effusion , is likely moderately enlarged and unchanged .
    OUTPUT:
    
1 . Reaccumulated left pleural effusion , now moderate , abdomen but still smaller in size than demonstrated on the prethoracentesis radiographs from ___ ___ . New confluent left mid lung opacity , which could potentially represent an early focus of pneumonia . Worsening retrocardiac opacity likely reflects atelectasis , though aspiration or infection can not be excluded . 3 . Persistent tiny right pleural effusion .