Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph was provided . A stent within the aortic valve and aortic root is again noted . Lung volumes are low , limiting evaluation . As seen previously , there is diffuse ground - glass opacity within the lungs which could reflect the presence of pulmonary edema , though given findings on recent chest CT , differential includes chronic hypersensitivity pneumonitis . There is no pleural effusion . The cardiomediastinal silhouette is stable . Bony structures appear intact .
    OUTPUT:
    
Diffuse ground - glass opacities within the lungs with no significant change from prior exam raises concern for pulmonary edema versus chronic hypersensitivity pneumonitis as suggested on recent CT exam . Please correlate clinically .