Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: COMPARED TO ___ AT 08 :07 , THE IRREGULAR OPACITY AT THE RIGHT BASE APPEARS SOMEWHAT MORE EXTENSIVE , SUGGESTING INTERVAL WORSENING . THERE IS MINIMAL ATELECTASIS AT THE LEFT LUNG BASE , POSSIBLY WITH A SMALL EFFUSION , SIMILAR TO THE PRIOR EXAM . THERE IS UPPER ZONE REDISTRIBUTION AND MILD VASCULAR PLETHORA --___ DEGREE OF VASCULAR PLETHORA IS ALSO VERY SLIGHTLY MORE PRONOUNCED . NO OVERT CHF . NO GROSS RIGHT EFFUSION . THE INDWELLING RIGHT CATHETER , STERNOTOMY WIRES , AND PROSTHETIC VALVE ARE AGAIN NOTED .
    OUTPUT:
    
INTERVAL WORSENING OF OPACITY AT RIGHT LUNG BASE . THE APPEARANCE IS COMPATIBLE WITH A PNEUMONIC INFILTRATE . IN THE APPROPRIATE CLINICAL SETTING , OTHER ALVEOLAR PROCESSES SUCH AS ALVEOLAR HEMORRHAGE ARE ALSO A POSSIBILITY .