Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable semi-erect chest radiograph was obtained . A right - sided PICC line tip remains in the right atrium . The lungs are clear . Hila are mildly indistinct which may suggest mild pulmonary vascular congestion . The cardiac contour is mildly enlarged . Median sternotomy wires are intact . No focal consolidation , effusion , or pneumothorax .
    OUTPUT:
    
1 . Right - sided PICC line tip in the right atrium . 2 . Improvement in mild pulmonary vascular congestion and cardiomegally .