From: Multidetector CT imaging of complications after laparoscopic nephron-sparing surgery
 | Score | ||
---|---|---|---|
Renal lesion feature | 1 point | 2 points | 3 points |
R—Radius (maximal diameter) | ≤4 cm | 4–7 cm | ≥7 cm |
E—Exophtic vs endophytic | ≥50 % Exophytic (projecting outside the renal cortex) | <50 % exophytic | Completely endophytic |
N—Nearness to the collecting system/renal sinus | ≥7 mm | 4–7 mm | ≤4 mm |
A—Anterior vs posterior location) | Descriptive (no numeric score) “a”, ventral; “p”, dorsal; “x”, others | ||
L—Location relative to polar lines | Entirely below lower or above upper polar line | Crosses polar line | 50 % of mass across polar line Entirely between polar lines Crosses the axial midline |
Additional suffix “h” if tumour reaches hilar vessels | |||
Renal lesion complexity | RENAL nephrometry score range | ||
Low | 4–6 | ||
Intermediate | 7–9 | ||
High | 10–12 |