Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . Lung volumes are low , exaggerating mild cardiomegaly and bronchovascular crowding . No focal consolidation , pleural effusion , or pneumothorax . No radiopaque foreign body . Body habitus has changed substantially over ___ years .
    OUTPUT:
    
Mild cardiomegaly , new since ___ . Interval weight gain . Low lung volumes . No focal consolidation .