Feasibility of Endoscopic Submucosal Dissection: A New Technique for En Bloc Resection of a Large Superficial Tumor in the Colon and Rectum

Table 2

Clinicopathologic characteristics of 5 suspended cases.

No.	Age Sex	Location	Size mm	Gross type	Depth	Diagnosis	History of biopsy/ET	NLS	Cause of suspend	Additional therapy
1.	69 M	Ascending	20	LST	SM2	Adenoca.	EMR/APC	+	Severe fibrosis	Scheduled LS
2.	77 M	Transverse	15	IIa+IIc	SM1	Adenoca.	EMR	+	Severe fibrosis	Scheduled LS
3.	68 M	Sigmoid	20	IIa	M	Adenoca.	biopsy	+	Severe fibrosis	Scheduled LS
4.	65 M	Transverse	22	LST	M	Adenoca.	biopsy	+	Severe fibrosis	Scheduled LS
5.	58 M	Sigmoid	20	IIc	M	Adenoca.	biopsy	+	Perforation	Emergency Surgery

ET: Endoscopic Therapy, NLS: Non-lifting Sign, LS: Laparoscopic Surgery, Adenoca.: Adenocarcinoma.
M: intramucosal cancer.
SM1: submucosal invasion less than 1000 μm from the muscularis mucosae.
SM2: submucosalinvasion 1000 μm or more fromthe muscularis mucosae.