Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are decreased , accentuating the pulmonary vasculature and cardiac contour . There is moderate cardiomegaly , which is stable . Complete retrocardiac opacification is indicative of lobar collapse , however superimposed infection is not excluded . Heterogeneous opacities in the right infrahilar region are concerning for infection . Small left pleural effusion is likely .
    OUTPUT:
    
1 . Moderate cardiomegaly . Stable . 2 . Left lower lobe collapse , new 3 . Right infrahilar airspace opacities are concerning for infection .