Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright portable chest radiograph is obtained . There is persistent airspace opacity involving the mid and lower lungs bilaterally concerning for pneumonia . A component of pulmonary edema is difficult to exclude . Upper lungs are somewhat lucent which reflects known severe emphysema as seen on a prior CT from ___ . No large pleural effusions are seen . Cardiomediastinal silhouette appears stable . There are prominent atherosclerotic calcifications along the course of the thoracic aorta . No pneumothorax . Bones appear intact . IVC filter is noted in the upper abdomen .
    OUTPUT:
    
Emphysema with persistent airspace opacities involving the mid and lower lungs concerning for pneumonia with possible component of pulmonary edema .