Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . There is improved aeration of the left upper lobe with left upper lobe nodularity again seen . There is right basilar atelectasis and tiny right pleural effusion . Right hilar prominence corresponds to known tumor . No free air below the right hemidiaphragm . Heart size appears normal . Bony structures appear grossly intact .
    OUTPUT:
    
No free air below the right hemidiaphragm . Right basilar atelectasis with small right pleural effusion and right hilar mass and left upper lobe mass again noted . Please refer to subsequent CT of the torso for further details .