Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . There is a round mass projecting over the right lower lobe measuring approximately 4 .1 x 4 .4 x 4 .0 cm , likely representing patient 's known lung cancer . There is no focal consolidation concerning for pneumonia . No large effusion or pneumothorax . Cardiomediastinal silhouette is normal . No free air below the right hemidiaphragm . Bony structures are intact .
    OUTPUT:
    
Right lower lobe mass measuring 4 .1 x 4 .4 x 4 .0 cm .