Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal contours are normal . There is a moderate left pleural effusion which is similar to the prior examination of ___ . There is opacification in the retrocardiac area which may represent layering pleural effusion with adjacent compressive atelectasis ; however , infectious process such as pneumonia appears more likely . Biapical parenchymal scarring is noted . There is near total resolution of the right - sided pleural effusion .
    OUTPUT:
    
Left lower lobe pleural effusion with consolidation . Repeat imaging post treatment to document resolution and rule out underlying mass .