Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to the prior examination , there has been interval development of multifocal airspace opacities compatible with multifocal pneumonia versus pulmonary hemorrhage . Pulmonary edema is mild , is present . Mild cardiomegaly is stable . There is no appreciable pleural effusion or pneumothorax . The aortic arch is calcified . The visualized osseous structures are grossly unremarkable .
    OUTPUT:
    
Interval development of multifocal airspace opacities compatible with multifocal pneumonia or pulmonary hemorrhage .