Description

Klatte et al identified prognostic factors for a patient with a clear cell renal cell carcinoma, including cytogenetic factors. This was used to develop a nomogram. The authors are from the University of California at Los Angeles.


 

Parameters:

(1) T stage

(2) N stage

(3) M stage

(4) Fuhrman grade

(5) loss of 9p

Parameter

Finding

Points

T stage

T1

0

 

T2

18.8

 

T3

37.6

 

T4

56.4

N stage

N0

0

 

N1 or N2

31

M stage

M0

0

 

M1

100

Fuhrman grade

Grade 1

0

 

Grade 2

33

 

Grade 3

66

 

Grade 4

99

9p

present

0

 

absent (loss of 9p)

34

 

total score =

= SUM(points for all 5 parameters)

 

Interpretation:

• minimum score: 0

• maximum score: around 330

• The higher the score the worse the prognosis.

 

Total Score

Percent 3 Year Disease Specific Survival

108.5

90%

143.4

80%

167

70%

181.7

60%

196.5

50%

210

40%

222.3

30%

236.2

20%

252

10%

 

This can be represented as:

 

Total Score

Percent 3-Year Disease Specific Survival

< 108

> 90%

108 to 252

(-0.002158 * ((score)^2)) + (0.1953 * (score)) + 95.38

> 252

< 10%

 

Other cytogenetic findings associated with a better prognosis (not significant in multivariate analysis):

(1) deletion of 3p

(2) loss of Y chromosome (in metastatic disease)

 

Other cytogenetic findings associated with a worse prognosis (not significant in multivariate analysis):

(1) loss of 4p

(2) loss of 14q

 


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