Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal semi-erect chest radiograph demonstrates mild cardiomegaly , which may be due in part to technique . There is diffuse increased opacity bilaterally , compatible with mild pulmonary edema . Additionally , more focal opacity projecting over the bilateral lower lungs is concerning for pneumonia . A VP shunt overlies the right hemi thorax and visualize right upper abdomen . There is no appreciable pleural effusion or pneumothorax . The visualized upper abdomen is otherwise unremarkable .
    OUTPUT:
    
Worsened mild pulmonary edema . More focal opacity projecting over the bilateral lower lungs concerning for pneumonia . These are new compared to CT torso from the day prior .