Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is unchanged . Cardiomediastinal silhouette and hilar contours are stable with re - demonstration of mild central pulmonary vascular congestion without frank edema . No dense consolidation suspicious for pneumonia . No effusion or pneumothorax . Right porta cath tip terminates in the high right atrium . Chronic bony changes consistent with given history of sickle cell disease .
    OUTPUT:
    
Mild central pulmonary vascular congestion . No pneumonia .