Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . The previously reported possible lung nodule is not seen on these films . However , there has been increase in heart size as well as increased distention of the azygous vein and cephalization of the pulmonary vasculature which suggests development of mild CHF . There is no evidence of pneumonia . There are no pleural effusions or pneumothorax . Opacity seen on prior study concerning for possible nodule is no longer seen today .
    OUTPUT:
    
1 . Previously reported opacity possibly representing a lung nodule is not seen on this study and most likely was a summation of shadows . 2 . Likely interval development of mild CHF .