Ji et al reported the Gastric Cancer Peritoneal Carcinomatosis Risk Score for predicting the prognosis of a patient with peritoneal carcinomatosis associated with gastric cancer. The authors are from Loma Linda University.
Patient selection: peritoneal carcinomatosis associated with gastric cancer, >= 18 years of age
Parameters:
(1) age of the patient in years
(2) race/ethnicity
(3) clinical T stage
(4) histologic type
(5) tumor location in stomach
(6) histologic grade
Parameter
Finding
Points
age of the patient
18 to 39 years
6
40 to 59 years
3
>= 60 years
0
race/ethnicity
non-Hispanic white
0
Asian or other
0.5
non-Hispanic black
3
Hispanic
2.5
clinical T stage
T1
0
T2 ot T3
1
T4
5.5
histologic type
intestinal
0
NOS
1
mucinous
1.5
diffuse
2.5
signet ring cell
3.5
tumor location
proximal
0
body
2.5
distal
2.5
overlapping
4
histologic grade
well-differentiated
0
moderately differentiated
2
poorly differentiated
4
undifferentiated
4
total score =
= SUM(points for all of the parameters)
Interpretation:
• minimum score: 0
• maximum score: 26
Total Score
Percent with Peritoneal Carcinomatosis
0 to 10
3.2%
10.5 to 14
10%
14.5 to 17
15%
17.5 to 20
26%
> 20
46%
Performance:
• The area under the ROC curve is 0.82.
To read more or access our algorithms and calculators, please log in or register.
