Treatment of patients with advanced gastrointestinal stromal tumor of small bowel: Implications of imatinib mesylate

Table 4 Mutation patterns of 22 advanced and metastatic small bowel GIST patients treated with imatinib meslyate

Case (n)	Mutation pattern
2	Deletion mutation at codon 551-556 in exon 11
4	Deletion mutation at codon 557-561 in exon 11
8	Deletion mutation at codon 550-5 in exon 11
12	Deletion mutation at codon 563-576 in exon 11
13	Deletion mutation at codon 575-576 in exon 11
19	Deletion mutation at codon 569-575 in the exon 11
24	Deletion mutation at of codon 555-572 in exon 11
1	Deletion and insertion mutations at codons 563-572 in exon 11
15	Deletion and insertion mutations at codons 557-8 in the exon 11
22	Deletion and insertion mutations at codon 563-574 in exon 11
3	Missense mutation at codon 556 in exon 11
18	Missense mutation at codon 576 in the exon 11
21	Missense mutation at codon 557 in exon 11
7	Insertion mutation at codon 502-3 AY(alanine and tyrosin) in exon 9
9	Insertion mutation at codon 502-3 AY(alanine and tyrosin) in exon 9
17	Insertion mutation at codon 502-3 AY(alanine and tyrosin) in exon 9
10	No mutation
14	No mutation
20	No mutation