Table 2.

Scoring scale for kidney cystadenomas

Score	Area Range (mm2)
1	0.01 < x ≤ 0.09
2	0.09 < x ≤ 0.2
3	0.2 < x ≤ 0.35
4	0.35 < x ≤ 0.5
5	x > 0.5

Areas of cystadenomas were calculated by multiplying

the longest axis and its perpendicular axis.