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. Author manuscript; available in PMC: 2016 Oct 1.
Published in final edited form as: Am J Surg. 2015 Jun 26;210(4):610–617. doi: 10.1016/j.amjsurg.2015.05.010

Table 2.

Distribution of pathologic stage in esophageal adenocarcinoma patients as determined by AJCC-6thth and AJCC-7thth editions

AJCC-7thth Edition Staging
AJCC-6thth
Edition Staging		 Stage
0		 Stage
1A		 Stage
IB		 Stage
IIA		 Stage
IIB		 Stage
IIIA		 Stage
IIIB		 Stage
IIIC		 Stage
IV		 Total
Stage 0a 115 115
Stage 1 155 46 201
Stage IIA 32 28 77 137
Stage IIB 58 29 1 97
Stage III 81 89 86 256
Stage IVa 1 3 3 10 13 30
Total 115 155 78 28 136 113 92 106 13 836
a

Stage 0 indicates Barrett’s esophagus with high-grade dysplasia only for the primary surgery cohort. In the neoadjuvant therapy cohort, stage 0 represents complete pathologic response with no residual invasive tumor following induction therapy in the resected esophagus or the resected lymph nodes.

(Gray boxes indicate consistency in stage grouping between the AJCC-6thth and 7th editions. The remaining cases were either upstaged or down-staged.)