Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal lateral chest radiographs demonstrate well expanded lungs . Mild interstital prominance likely represents underlying chronic underlying disease as seen on patient 's prior studies without an acute superimposed process . The pleural surfaces are normal without pleural effusion or pneumothorax . Heart size is minimally enlarged however has improved from prior study . Mediastinal contour is normal . Slight hilar prominence is unchanged and is compatible with lymphadenopathy seen on CT from ___ . Limited assessment of the upper abdomen is unremarkable without evidence of intraperitoneal air .
    OUTPUT:
    
No acute cardiopulmonary process to explain patient 's symptoms .