Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable semiupright view of the chest is provided . Lung volumes are extremely low resulting in accentuation of pulmonary vasculature . Linear opacities at the left base likely reflect atelectasis . Heart is normal in size and cardiomediastinal contour is unchanged . There is no large effusion . A right - sided internal jugular venous catheter terminates in the right atrium .
    OUTPUT:
    
1 . Central venous catheter terminates in the right atrium . 2 . Extremely low lung volumes with pulmonary vascular crowding and left basilar atelectasis .