Trans-anal endoscopic microsurgery for non- adenomatous rectal lesions

Table 1 Study cohort

No	Age (yr)	Preop diagnosis	Final pathology	Size	Distance	Location	Op time	LOS
1	62	GIST	GIST	3	6	Post	65	2
2	58	NET	NET	1	8	Post	60	3
3	28	Indeterminate pathology	Solitary rectal ulcer	3	10	Ant	65	2
4	58	GIST	GIST	1.5	5	Rt post	90	2
5	66	Retro-rectal mass	Tailgut cyst	3	7	Post	110	2
6	54	Retro-rectal mass	Tailgut cyst	4	8	Post	150	3
7	40	NET	NET	1.5	9	Post	100	1
8	45	Retro-rectal mass	Tailgut cyst	3	7	Post	100	3
9	68	Submucosal lesion	Lipoma	6	8	Post	150	3
10	72	Leiomyosarcoma	Leiomyosarcoma	4	6	Ant	95	3
11	48	Retro-rectal mass	Tailgut cyst	2	6	Rt post	100	2
12	80	Indeterminate pathology	Rectal stenosis		7	Circ	50	2
13	54	GIST	GIST	2	11	Ant	50	3
14	25	Indeterminate pathology	Cloacogenic polyp	4	7	Lt	60	2
15	52	Indeterminate pathology	Endometrioma	4	13	Rt	200	4
16	74	Submucosal lesion	Lipoma	3	7	Lt	120	3
17	44	NET	NET	1	10	Rt ant	90	3
18	42	Retro-rectal mass	Tailgut cyst	3	7	Post	105	3

LOS: Mean length of stay; NET: Neuroendocrine tumor; GIST: Gastrointestinal stromal tumor.