Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right sided Port - A - Cath terminates low in the right atrium . Low lung volumes with new left pleural effusion . No lobar consolidation . Stable mild cardiomegaly and aortic knuckle calcification . Bony thorax is unchanged compared to the prior radiograph .
    OUTPUT:
    
New moderate left pleural effusion with likely underlying subsegmental atelectasis . Low lung volumes . Right Port - A - Cath terminates low in the right atrium .