Characteristics

Number (14)

Rate (%)

Primary involvement

Inferior vena cava

Aorta (infrarenal segment)

5

4

1

36

29

7

Secondary involvement (vascular infiltration)

Inferior vena cava and aorta (type I)

Right common iliac artery (type II)

Inferior vena cava (type III)

Superior mesenteric vein (type III)

Right and left common iliac bifurcation vein (type III)

9

4

1

1

1

2

64

29

7

7

7

14