Zonal NePhRO Score of Hakky et al for Renal Tumor Complexity Classification

The complexity of a renal tumor can be classified using the NePhRO score of Hakky et al. The authors are from Moffitt Cancer Center in Tampa.

Parameters:

(1) Nearness (Ne)

(2) Physical zone (Ph)

(3) Radius in cm (R)

(4) Organization (O)

Parameter	Finding	Points
Nearness	mass touches the cortex	1
	mass touches the medulla	2
	mass touches collecting system or crosses the renal sinus	3
Physical zones	lower pole below collecting system	1
	lateral to but not touching collecting zone	2
	upper pole or touches collecting system	3
Radius	< 2.5 cm	1
	2.5 to 3.99 cm	2
	>= 4.0 cm	3
Organization	< 50% endophytic (> 50% exophytic)	1
	50 to 75% endophytic	2
	> 75% endophytic	3

total score =

= SUM(points for all of the parameters)

Interpretation:

• minimum score: 4

• maximum score: 12

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