Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Trace left apical pneumothorax is seen . A 3 .1 - cmleft upper lobe mass with fiducial seeds is worrisome for malignancy . Opacities in the right upper lobe , relate to previously treated lung cancer . The heart is mildly enlarged . A dilated tortuous thoracic aorta is noted . Right chest wall AICD device is seen with leads in the expected position of the right atrium and right ventricle .
    OUTPUT:
    
Trace left apical pneumothorax . Fiducial seeds within the left upper lobe lung mass .