How can colorectal neoplasms be treated during colonoscopy?

Table 1 Characteristics of 5 502 resected colorectal lesions.

Morphology	Size (mm)	Location
		R	S	D	T	A & C	Total
	≤5	161	135	209	63	161	729
	6-10	1105	717	478	72	254	2626
Protruded	11-20	118	121	173	46	75	533
	21-30	13	22	14	0	1	50
	>30	7	8	0	0	0	15
Sessile	≤5	353	495	271	143	140	1402
LST	6-10	25	11	5	5	11	57
	11-20	12	8	3	2	12	37
	21-30	15	21	1	0	2	39
	>30	4	2	0	0	0	6
Depressed	≤5	0	1	0	0	2	3
	6-10	2	0	1	0	2	5
Total		1815	1 541	1155	331	660	5502

R, rectum; S, sigmoid colon; D, descending colon; T, transverse colon; A, ascending colon; C, cecum; LST, lateral spreading tumor.

Table 2 Histological finding of 5502 resected lesions.

Morphology	Size (mm)	Adenoma		Adenocarcinoma		Non-neoplastic	Total
		Dysplasia		M (%)	SM (%)
		(-)	(+)
Protruded	≤5	293	19	1 (0.14)	0	416	729
	6-10	2053	505	7 (0.27)	0	61	2626
	11-20	118	312	99 (18.6)	1 (0.19)	3	533
	21-30	1	5	39 (78)	5 (10)	0	50
	>30	0	1	2 (13.3)	12 (80)	0	15
Sessile	≤5	743	232	6 (0.43)	2 (0.14)	419	1402
LST	6-10	18	27	8 (14)	0	4	57
	11-20	15	10	10 (27)	0	2	37
	21-30	5	15	18 (46.2)	1 (2.6)	0	39
	>30	0	1	3 (50)	2 (33.3)	0	6
Depressed	≤5	1	0	1 (33.3)	0	1	3
	6-10	0	2	2 (40)	1 (20)	0	5
Total		3248	1 128	196 (3.56)	24 (0.44)	906 (891 HP, 15 IP)	5502

LST, lateral spreading tumor; M, mucosal cancer; SM, cancer with submucosal involvement; dysplasia (+), with moderate to severe dysplasia; HP, hyperplastic polyp; IP, inflammatory polyp.