Importance of preoperative total colonoscopy and endoscopic resection after self-expandable metallic stent placement for obstructive colorectal cancer as a bridge-to-surgery

Table 7 Characteristics of neoplastic lesions larger than 10 mm detected in 45 patients who underwent follow-up colonoscopy within 1 year after surgery

Patient age	Stent location	Location of newly-detected tumors	Resection method	Pathological diagnosis (invasion depth)
81	T	Sigmoid colon	EMR	Adenoma
67	RS	Cecum	ESD	Adenoma
		Cecum	EMR	Adenoma
75	S	Descending colon	Surgery	Carcinoma (submucosal, 1500 μm)
65	T	Ascending colon	EMR	Carcinoma (M)
83	D	Ascending colon	EMR	Adenoma
77	A	Transverse colon	EMR	Adenoma

T, transverse colon; RS, rectosigmoid colon; S, sigmoid colon; D, descending colon; A, ascending colon; EMR, endoscopic mucosal resection; ESD, endoscopic submucosal dissection; M, mucosal

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