Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low with bilateral basal atelectasis and pleural effusion , moderate on the left , minimal on the right . There is no pneumothorax . Mediastinal and cardiac contours are normal .
    OUTPUT:
    
As shown on yesterday 's CT scan , there is bilateral basilar atelectasis and pleural effusion , left more than right .