TABLE 5.

Clinical data of 19 lesions of nine surgical patients

Patient number	Lesion number	Mayo	Identification	Location	Lesion size (mm)	Tumor depth of invasion d	Disease duration (year)	Type of disease	Operative procedure
A	1 b	1	Visible	R	65	SS	30	Left‐sided colitis	Low anterior resection
B	2 b	0	Visible	R	65	SS	29	Proctitis	Pelvic visceral resection
C	3 b	0	Visible	R	42	AI	13	Pancolitis	Total proctocolectomy
D	4 b	3	Visible	D	80	SS	19	Pancolitis	Total proctocolectomy
	5	3	Undetected	R	40	M	19	Pancolitis	Total proctocolectomy
	6	3	NA c	A	70	M	19	Pancolitis	Total proctocolectomy
E	7 b	3	Visible	R	140	SE	12	Pancolitis	Total proctocolectomy
	8	3	NA c	S	85	SM	12	Pancolitis	Total proctocolectomy
	9	3	Visible	R	75	M	12	Pancolitis	Total proctocolectomy
F	10 b	1	Visible	R	45	AD	16	Pancolitis	Total proctocolectomy
	11	1	Visible	R	24	SS	16	Pancolitis	Total proctocolectomy
G	12 b	1	Visible	S	15	SS	NA c	Pancolitis	Total proctocolectomy
	13	1	Visible	S	10	SM	NA c	Pancolitis	Total proctocolectomy
H	14 b	2	Visible	R	105	M	20	Pancolitis	Total proctocolectomy
	15	2	Visible	S	45	M	20	Pancolitis	Total proctocolectomy
	16	2	Undetected	D	60	M	20	Pancolitis	Total proctocolectomy
I a	17 b	0	Visible	S	60	SM	21	Pancolitis	Total proctocolectomy
	18	0	Undetected	T	20	M	21	Pancolitis	Total proctocolectomy
	19	0	Undetected	T	25	M	21	Pancolitis	Total proctocolectomy

Abbreviations: A, ascending colon; D, descending colon; M, mucosa; MP, muscularis propria; NA, not assessed; R, rectum; S, sigmoid colon; SE, serosa; SM, submucosa; SS, subserosa; T, transverse colon.

^a Additional surgery for non‐curative ESD case.

^b Main lesion for colectomy.

^c The colonoscope could not be inserted into the proximal lesion because of distal stenosis.

^d Depth of invasion was classified according to the Japanese Classification of Colorectal, Appendiceal, and Anal Carcinoma: The 3d English Edition.