From: Role of primary surgery in advanced ovarian cancer
Residual tumor status*
Maximum diameter of residual tumor
Maximum total volume of residual tumor
Optimal
Microscopic
No visible tumor
Minimal
< 1 cm
≤ 10 cm3
Intermediate
1 – 2 cm
> 10 cm3 but ≤ 100 cm3
Gross
> 2 cm
> 100 cm3