Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest are compared to previous chest x-ray from ___ . Right IJ central line is no longer seen . Right chest wall port is now seen with catheter tip in the region of the RA / SVC junction . NG tube is no longer seen . The lungs are clear of focal consolidation . Retrocardiac nodule has demonstrated interval increase in size compatible with known metastases . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process . No free air below the diaphragm . Enlarging retrocardiac pulmonary nodule .