Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen are diffusely increased interstitial markings bilaterally , consistent with chronic underlying lung disease . The superimposed mild pulmonary edema is not excluded . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable . Anterior compression of a vertebral body at the thoracolumbar junction was also seen on prior radiograph , grossly similar .
    OUTPUT:
    
Chronic lung disease with possible minimal superimposed pulmonary edema . Overall , no significant interval change since the prior study .