Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided demonstrate dual - lead pacemaker with left chest wall pacer pack and leads extending to the region of the right atrium and right ventricle . As seen on prior exams is a right upper lobe mass measuring approximately 5 - cm in maximal diameter . Margins appear irregular and findings are compatible with malignancy . The heart and mediastinal contour appear stable . No acute bony injury . IVC filter partially imaged in the right mid abdomen .
    OUTPUT:
    
No acute traumatic findings . LUL mass .