Table 1.

Characteristics of 129 patients with GIST

VariableNumber (%)
Mean age, years (range)56.98 (29–75)
Gender
 Male56 (43.41)
 Female73 (56.58)
Localization
 Stomach61 (47.29)
 Small intestine41 (31.78)
 Colorectum9 (6.98)
 Other18 (13.95)
Risk stratification
 Intermediate risk30 (23.26)
 High risk99 (76.74)
Mutations
KIT Exon 1197 (75.19)
KIT Exon 99 (6.98)
KIT Exon 174 (3.10)
 Wild-type KIT7 (5.43)
 PDGFR Exon 186 (4.65)
 PDGFR Exon 122 (1.55)
 Wild-type PDGFRA109 (84.50)
 Wild-type KIT-PDGFRA3 (2.33)
 Undetected12 (9.30)
Tumor histology
 Epithelioid20 (15.50)
 Spindle98 (75.97)
 Mixed11 (8.53)
 R0 resection125 (96.89)
 Rupture3 (2.33)
IHC (positive rate)
 CD117127 (98.45)
 CD34119 (86.8)
 Ki-6795 (73.64)
 SMA26 (20.16)
 S-10011 (8.53)
Imatinib dose (mg/day)
 2006 (4.65)
 30021 (16.28)
 40090 (69.77)
 60012 (9.30)