Endoscopic Submucosal Dissection for Gastric Tube Carcinoma after Esophagectomy Contributes to Long-Term Outcomes

Table 2

Clinical and histopathological findings of GTC lesions (n = 45).

Location
Upper	2
Middle	17
Lower	26
On the suture line	4
Macroscopic types
0-I	1
0-IIa	10
0-IIc	34
Median tumor size, mm	17.5 (5–53)
Histological type
Differentiated (tub1, tub2)	33
Undifferentiated (por, sig)	2
Mixed	10
Invasion depth
pT1a (M)	29
pT1b (SM1)	3
pT1b (SM2)	12
pT2 (MP)	1
Lymphovascular invasion
Positive	7
Negative	38
Horizontal margin
Positive	1
Negative	44
Vertical margin
Positive	5
Negative	40

tub1, well-differentiated adenocarcinoma; tub2, moderately differentiated adenocarcinoma; por, poorly differentiated adenocarcinoma; sig, signet-ring cell carcinoma; M, mucosal; SM1, <500 μm below the muscularis mucosa into the submucosa; SM2, 500 μm or deeper invasion from the muscularis mucosa into the submucosa.