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Absolute indication and expanded indication for endoscopic treatment of early gastric cancer
| Depth of invasion | Differentiated | Undifferentiated | |||
 , absolute indication lesion;
 , relative indication lesion. cT1a (M), intramucosal cancer (preoperative diagnosis); cT1b (SM), submucosally invasive cancer (preoperative diagnosis); UL, finding of ulceration (scar). *, only for endoscopic submucosal dissection (ESD).
| |||||
| cT1a (M) | |||||
| UL (−) | ≤2 cm | >2 cm | ≤2 cm | >2 cm | |
| * | |||||
| UL (+) | ≤3 cm | >3 cm | |||
| * | |||||
| cT1b (SM) | |||||
