Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with the prior radiograph , no significant change in the right lung base opacity and moderate cardiomegaly . The left costophrenic angle is not fully imaged . Calcified aortic arch is unchanged . Mild pulmonary vascular congestion without pulmonary edema is unchanged . Calcified aortic arch is also seen .
    OUTPUT:
    
Compared with the prior radiograph , no change in the right lung base opacity and moderate cardiomegaly . Mild pulmonary vascular congestion again seen .