Table 1.

Comparison between SESCC and EGC cases with metastatic recurrence after non-curative ER without additional treatment.

	SESCC	EGC
The rate of detection as locoregional recurrence among patients with metastatic recurrence	65.2%	21.4%
The rate of no further recurrence among patients undergoing salvage treatment for metastatic recurrence	83.3%	20.0%
The rate of patients with long-term survival and no further recurrence after salvage treatment among patients with metastatic recurrence	47.8%	3.7%

EGC, early gastric cancer; ER, endoscopic resection; SESCC, superficial esophageal squamous cell carcinoma.