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Table 2 Cases with PIK3CA mutations in either endoscopic biopsy or surgically resected specimens

From: Concordance between PIK3CA mutations in endoscopic biopsy and surgically resected specimens of esophageal squamous cell carcinoma

Case

Endoscopic biopsy

Surgical resection

T factor

Mutation

Histology

Mutation

Histology

8

E542K

M/D

Wild type

M/D

T3

50

E545K

M/D

E545K

M/D

T1b

61

Wild type

P/D

E545K

M/D

T4

66

H1047R

M/D

H1047R

P/D

T3

75

H1047R

M/D

H1047R

M/D

T3

87

E542K

M/D

E542K

M/D

T3

111

E545K

M/D

E545K

M/D

T3

114

E545K

M/D

E545K

M/D

T3

127

H1047R

M/D

H1047R

M/D

T3

132

Wild type

M/D

H1047R

M/D

T1b

140

H1047L

M/D

H1047L

M/D

T3

163

H1047R

M/D

H1047R

M/D

T3

166

H1047R

M/D

H1047R

W/D

T1b

  1. Abbreviations: W/D well differentiated, M/D moderately differentiated, P/D poorly differentiated