Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are new heterogeneous opacities in the left mid and lower lung as well as right lower lung in addition to the previously seen biapical heterogeneous opacities . No definite pleural effusions . No pneumothorax . The pacemaker leads are in appropriate position .
    OUTPUT:
    
In addition to the biapical radiation changes , there is likely overlying atypical organism infection , possibly PCP , or drug toxicity from chemotherapy that has now spread to the left mid , left lower , and right lower lung fields .