Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right internal jugular central venous catheter tip terminates in the mid SVC . The lung volumes are low . The heart size remains moderately enlarged . The aorta is tortuous and calcified . Widening of the mediastinum is likely related to supine positioning and elevated venous pressures which is mild . There is no focal consolidation , large pleural effusion or large pneumothorax on this supine study . No acute osseous abnormalities detected .
    OUTPUT:
    
1 . Right internal jugular central venous catheter tip in the mid SVC . No large pneumothorax identified . 2 . Elevated venous pressures .