Large endoscopic mucosal resection for colorectal tumors exceeding 4 cm

Table 1 Lesion characteristics

Lesion description and evaluation	n (%)
Total number of lesions	26
Locations
Rectum	15 (58)
Left colon	4 (15)
Transverse colon	1 (4)
Right colon	6 (23)
Size (mm)
Mean	49
40-50	18 (65)
50-60	2 (8)
> 60	6 (27)
Paris classification
0-Is	9 (34)
0-IIa	15 (58)
0-IIb	1 (4)
0-IIc	1 (4)
Kudo’s classification
III (L+s)	2 (8)
IV	24 (92)
Anatomopathology
Tubulous	8 (31)
Villous	11 (42)
Tubulovillous	7 (27)
Low-grade dysplasia	9 (35)
High-grade dysplasia	10 (38)
In situ carcinoma	5 (19)
Intramucosal carcinoma (type m2)	2 (8)
Submucosal-invading carcinoma	0