Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest are compared to previous exam from ___ . Lower lung volumes seen on the current exam . There are increased interstitial markings without frank evidence of consolidation or effusion . Cardiac silhouette is enlarged but not changed given differences in positioning and technique . Calcification projecting over the right lung apex could be due to calcification / scarring versus due to overlying vascular calcifications . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
No significant interval change . Mild interstitial edema and cardiomegaly . No evidence of consolidation .