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Chances of Aggressive Carcinoma in Renal Tumor Removed By Partial Nephrectomy

Purpose: To predict the probability that a renal tumor <= 7 cm in diameter removed by partial nephrectomy is an aggressive carcinoma based on the model of Lane et al.

Description

Lane et al developed a nomogram for predicting the likelihood of an aggressive renal carcinoma in a tumor removed by partial nephrectomy. This can help to identify a patient who may benefit from more aggressive management. The authors are from the Glickman Urological Institute and the Cleveland Clinic in Cleveland, Ohio.


 

Patient selection: solid enhancing renal tumor 7 cm or less in diameter in a patient from 20 to 90 years of age

 

Parameters:

(1) age

(2) gender

(3) diameter of the tumor in cm

(4) local symptoms at diagnosis

(5) history of smoking

 

points for tumor diameter =

= (6.4 * (diameter in cm)) - 3.2

 

points for age =

= (1.4286 * (age in years)) - 28.57

 

Parameter

Finding

Points

gender

female

0

 

male

7.8

local symptoms at diagnosis

yes

0

 

no

3

history of smoking

no

0

 

yes

8.3

 

total score =

= SUM(points for all of the parameters)

 

Interpretation:

• minimum score: 0

• maximum score: 160

• The higher the score the greater the likelihood of the tumor being aggressive.

 

Probability

Total Score

< 15%

< 27 points

15 to 50%

(0.000818 * ((points)^2)) + (0.1488 * (points)) + 10.25

> 50%

> 148 points

 


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Specialty

Objective

ICD-10