Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes remain low and a severe , global infiltrative pulmonary abnormality persists . As compared to the most recent prior examination dated ___ , there are multiple new bilateral opacities , most notably in the right upper and left lower lobes , although other regions have improved . There is no evidence of pleural effusion or large pneumothorax . The cardiomediastinal silhouette is unchanged .
    OUTPUT:
    
Interval development of multiple new bilateral airspace opacities , compatible with multifocal pneumonia or pulmonary hemorrhage .