Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest . Poorly defined bibasilar opacities are new since ___ including a dominant 3 .6 cm round opacity in the left lower lobe posterior basilar segment . Additionally a possible new opacity is noted in the right apex adjacent to the right clavicular head . No pleural effusion or pneumothorax is identified . The cardiac and mediastinal contours are normal .
    OUTPUT:
    
New bibasilar opacities , including a dominant 3 .6 cm round left lower lobe posterior basilar segment opacity . Dedicated chest CT is recommended to further characterize the dominant lesion and to help differentiate granulomatous infection from neoplasm .