Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the prior examination dated ___ , there has been interval progression of multifocal airspace opacities . Bilateral pulmonary edema is now moderate . A small right pleural effusion is noted . The left costophrenic angle is blunted and may be secondary to a small left pleural effusion or consolidation . A large , left , subpleural opacity is consistent with known metastatic rib lesions . Moderate cardiomegaly is noted . The mediastinum is minimally widened as compared to the prior examination , likely secondary to patient positioning and mediastinal vein distension . Monitoring and support devices are unchanged in position .
    OUTPUT:
    
1 . Interval progression of bilateral airspace opacities , compatible with worsening multifocal pneumonia . 2 . Moderate pulmonary edema .