Table 2 Distribution of c-KIT and PDGFR-α genes mutations ( N = 108)
c-KIT exon 11 | c-KIT exon 9 | PDGFR-alpha exon 12 | PDGFR-alpha exon 18 | Wild type | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
N | % | N | % | N | % | N | % | N | % | |
Site (ICD-O-3 code) | ||||||||||
Stomach (C16) | 31 | 53.5 | 2 | 25 | 1 | 50 | 13 | 100 | 15 | 55.5 |
Small intestine (C17) | 23 | 39.6 | 6 | 75 | 0 | 0 | 11 | 40.7 | ||
Colon (C18) | 0 | 0 | 0 | 0 | 1 | 3.8 | ||||
Rectum (C20) | 1 | 1.7 | 0 | 0 | 0 | 0 | ||||
Peritoneum (C48.2) | 3 | 5.2 | 0 | 1 | 50 | 0 | 0 | |||
Fletcher’s risk groups | ||||||||||
LR | 9 | 15.5 | 2 | 25 | 0 | 8 | 61.5 | 14 | 51.9 | |
IR | 13 | 22.4 | 4 | 50 | 1 | 50 | 4 | 30.8 | 7 | 25.9 |
HR | 33 | 6.9 | 2 | 25 | 1 | 50 | 1 | 7.7 | 5 | 18.5 |
Met | 3 | 5.2 | 0 | 0 | 0 | 1 | 3.7 | |||