Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided Port - A - Cath is seen with catheter terminating at the cavoatrial junction . Bilateral pulmonary opacities , multiple , consistent with the patient 's known metastatic disease ; difficult to accurately compare to prior given differences in modality to the prior CT , however , overall , nodular opacaities appear to have increased in size , and possibly number , worrisome for worsening metastatic disease . No definite new focal consolidation is seen . There is no pleural effusion or evidence of pneumothorax . The cardiac and mediastinal silhouettes are stable . Osseous metastatic disease better assessed on CT .
    OUTPUT:
    
Extensive pulmonary metastases worrisome for progression since the prior CT from ___ , given differences in modality .