Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest demonstrates an enlarged cardiac silhouette , likely exaggerated due to technique . Again seen are vague bilateral patchy opacities , in the appropriate clinical context , that could represent multifocal pneumonia . There is mild indistinctness of the pulmonary vasculature without definite interlobular septal thickening or pleural effusions .
    OUTPUT:
    
1 . Persistent vague bilateral opacities , could be consistent with multifocal pneumonia in the appropriate clinical context . 2 . No definite edema identified .