Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided Port - A - Cath tip terminates in the proximal right atrium , unchanged . Heart size is normal . The mediastinal and hilar contours are unremarkable . Mild pulmonary vascular congestion appears improved compared to the prior exam . No focal consolidation , pleural effusion or pneumothorax is identified . Linear scarring within both lung bases is re - demonstrated . H - shaped morphology of the vertebral bodies is compatible with sickle cell disease . A normal splenic shadow is not identified .
    OUTPUT:
    
Mild pulmonary vascular congestion , improved compared to the prior exam .