Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided Port - A - Cath tip terminates in the lower SVC . Cardiac and mediastinal contours are unchanged . Elevation of the right hemidiaphragm is similar . Innumerable pulmonary metastases are re - demonstrated diffusely . Pulmonary vasculature is not engorged . A small right pleural effusion is present . No pneumothorax is demonstrated . Destructive lytic lesion involving the posterior right fourth rib is re - demonstrated .
    OUTPUT:
    
Small right pleural effusion , new in the interval . Innumerable pulmonary metastases without substantial interval change .