Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided Port - A - Cath tip terminates within the right atrium . There is rightward shift of mediastinal structures due to the presence of a large left pleural effusion , which is significantly increased in size compared to the previous CT . Left basilar opacification is likely due to compressive atelectasis . Heart size is difficult to assess given the presence of the large pleural effusion . Numerous nodular opacities within the right lung base are compatible with known metastatic disease . Hyperinflation of the lungs with attenuation of the pulmonary vascular markings towards the apices is compatible with underlying emphysema . No pneumothorax is present . Blunting of the right costophrenic angle suggests a trace right pleural effusion .
    OUTPUT:
    
Large left pleural effusion , significantly increased in size compared to the previous exam . Innumerable nodules within the right lung base compatible with metastatic disease . Emphysema . Trace right pleural effusion .