Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Somewhat spiculated opacity in the right infrahilar region was better characterized on prior exam in and grossly unchanged . There is mild associated volume loss the right hemithorax without visualized pleural effusion . The left lung is clear where not obscured by overlying cardiac pacing device . Lead tips are seen in similar position . Cardiomediastinal silhouette is unchanged . Median sternotomy wires and mediastinal clips are again noted as well as coronary artery stents . No acute osseous abnormalities .
    OUTPUT:
    
Known right infrahilar mass lesion without definite superimposed acute cardiopulmonary process .