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Table 3 Clinico-pathological and genetic data for 22 GISTs

From: Copy-neutral loss of heterozygosity and chromosome gains and losses are frequent in gastrointestinal stromal tumors

Tumor name

Sex

Age at diagnosis

Tumor location*

KIT WT status**

KIT Mutation

Stage at diagnosis***

Fletcher ****

Histology *****

Mitotic Index/50HPF

Complementary analysis

1C2

M

53

Sm

WT-

c.1653_1661del, p.552-554del

L

NA

F

>10

CGH, FISH

3C2

M

59

Ga

WT-

c.1653_1670del, p.552_557del

M

HR

M

>10

CGH

4C

F

42

D

WT-

c.1708_1728del, p.570-576del

R

LR

F

0

CGH

6C3

M

67

R

WT-

c.1648-5_1670del, p.550-558del

R

HR

E

>10

CGH

18C3

F

47

Sm

WT-

c.1679 T > A, p.V560D

R

NA

F

>10

CGH

20 s2

M

57

Ga

WT-

c.1666_1680del, p.556_560del

M

HR

F

>10

CGH, FISH

28 s2

F

57

D

WT-

c.1679_1681del, p.560del

R

NA

F

NA

NR

29 s2

M

60

Ga

WT-

c.1669_1674del, p.557_558del

R

HR

M

>10

CGH

30 s2

M

85

M

WT-

c1669 T > A, pW557R

L

HR

F

>10

NR

31 s2

M

53

Sm

WT-

c1658-1669del, p.553-556del

M

HR

F

>10

NR

32 s2

F

43

Sm

WT-

c1670-1675Del, p.557_559delinsF

NA

NA

F

2

NR

2P2

M

82

Ga

WT+

c.1670_1675del, p.557_559delinsF

M

HR

F

>10

NR

5C3

F

64

D

WT+

c.1669_1716del, p.557-572del

R

HR

M

NA

NR

10C2

M

66

Sm

WT+

c.1669_1674del, p.557_558del

R

HR

F

>10

NR

14C2

F

60

Ga

WT+

c.1679_1681del, p.560del

R

HR

F

2

NR

15C2

F

54

Sm

WT+

c.1676 T > G, p.V559G

R

IR

F

1

FISH

22 s2

F

54

Ga

WT+

c.1679 T > G, p.V560G

NA

LR

F

1

NR

23 s2

F

45

Ga

WT+

c.1658_1674delinsCTGAA, p.553-558delinsSE

NA

LR

F

0

NR

24 s2

F

57

D

WT+

c.1673_1674insTCC, p.558delinsNP

R

LR

F

0

CGH

12C2

M

39

Ga

WT+

c.1700_1726delinsGTTGTG, p.567-576SdelinSCV

R

HR

E

0

NR

19 s2

M

55

Ga

WT+

c.1679 T > A, p.V560D

R

HR

E

>10

CGH

27 s2

M

59

Ga

WT+

c.1669_1680del, p.557-560del

R

HR

M

>10

CGH

  1. *Sm: small intestine; Ga: gastric; D: duodenum; M: mesenteric; R: rectum.
  2. **WT-: loss of wild type allele of KIT; WT+: presence of the wild type allele of KIT.
  3. ***L: localy advanced; M: metastatic; R: resectable.
  4. ****According to Fletcher classification: HR: High risk; LR: low risk; IR: intermediate risk.
  5. *****F: spindled cells; E: epithelioid form: M: mixed form.
  6. NA – not available, NR – not realized.