Table 2 RNS and CSE

<R>adius

<0.05

 ≦ 4 cm (1 point)

28(68%)

57(95%)

 > 4 to <7 cm (2 points)

13(32%)

3(5%)

<E>xophyic properties

<0.05

 ≧ 50% (1 point)

14(34%)

37(62%)

 < 50%(2 points)

17(41%)

21(35%)

 Entirely (3 points)

10(25%)

2(3%)

<N>earness

<0.05

 ≧ 7 mm (1 point)

6(15%)

41(68%)

 > 4 to < 7 mm (2 points)

3(7%)

10(17%)

 ≦ 4 mm (3 points)

32(78%)

9(15%)

<L>ocation

n.s.

 Middle-kidney (1 point)

10(24%)

28(47%)

 Crosses polar line (2 points)

15(37%)

14(23%)

 Polar (3 points)

16(39%)

18(30%)

R.E.N.A.L score(median)

 Total score

8

6

<0.05

 Total score excluding L-score

6

4

<0.05