Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared with ___ , there is increased pulmonary vascular congestion , with no frank pulmonary edema . There is an additional opacity at the right lung base , concerning for pneumonia . No pleural effusion or pneumothorax . Cardiomegaly is not significantly changed from prior . A biventricular pacing device is present , with unchanged lead placement allowing for differences in positioning .
    OUTPUT:
    
1 . Cardiomegaly , with worsening pulmonary vascular congestion . No frank pulmonary edema . 2 . An opacity at the right lung base is concerning for pneumonia .