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Table 2 Pathologic features of patients

From: Laparoscopic versus open wedge resection for gastrointestinal stromal tumors of the stomach: a single-center 8-year retrospective cohort study of 156 patients with long-term follow-up

Variable(%) LWR(n = 90) OWR(n = 66) Pvalue
Tumor size (cm) 3.5 ± 1.9 4.3 ± 2.4 0.02
Tumor location    0.08
 Cardia 14(15.6) 10(15.2)  
 Fundus 29(32.2) 16(24.2)  
 Body near lesser curvature 11(12.2) 4(6.1)  
 Body near greater curvature 30(33.3) 22(33.3)  
 Antrum 6(6.7) 14(21.2)  
Mitotic rate (per 50 HPF)    0.20
 <5 80(88.9) 52(78.8)  
 5 ~ 10 7(7.8) 8(12.1)  
 >10 3(3.3) 6(9.1)  
Immunohistochemistry    
 CD117(+) 86(95.6) 66(100) 0.11
 CD34(+) 87(96.7) 63(95.5) 0.20
 DOG-1(+) 72(80.0) 58(87.9) 0.19
 SMA 30(33.3) 17(25.8) 0.31
 S-100 16(17.8) 14(21.2) 0.59
 Desmin 9(10) 6(9.1) 0.95
Fletcher classification    0.51
 Very low risk 20(22.2) 13(19.7)  
 Low risk 46(51.1) 28(42.4)  
 Intermediate risk 16(17.8) 16(24.2)  
 High risk 8(8.9) 9(13.6)