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Prolongation of the period between biopsy and EMR can influence the nonlifting sign in endoscopically resectable colorectal cancers.

Abstract：

BACKGROUND:The nonlifting sign is widely used for evaluating the invasion depth of colorectal tumors, and it is commonly accepted that EMR is contraindicated for colorectal tumors with a nonlifting sign because of the probability of massive submucosal invasion. OBJECTIVE:To identify the clinicopathologic factors that affect the nonlifting sign in submucosal invasive colorectal carcinoma (SICC). DESIGN:Details regarding a history of biopsy, postbiopsy days, tumor location, tumor configuration, tumor size, depth of submucosal invasion, histologic type, adenomatous remnants, and angiolymphatic invasion were studied in relation to the nonlifting sign. SETTING:National Cancer Center, Korea. PATIENTS:The study involved 76 patients with SICC treated by endoscopic or surgical resection, in whom the tumor was examined for the nonlifting sign from 2001 to 2006. RESULTS:The nonlifting sign was observed in 15 cases (19.7%). A deep submucosal invasion, a history of biopsy, and the absence of adenomatous remnants were identified as factors affecting the nonlifting sign in univariate and multivariate analyses (P < .05). An increase in the number of postbiopsy days was associated with the nonlifting sign in endoscopically resectable SICC, and all 11 sm1 cancer cases with fewer than 21 postbiopsy days showed lifting. CONCLUSIONS:A history of biopsy and the absence of adenomatous remnants, in addition to deep submucosal invasion, were found to influence the nonlifting sign in SICC. It may be best that mechanical stimulation such as forceps biopsies are minimized before EMR, and EMR should be tried as soon as possible if biopsy was performed.

journal_name

Gastrointest Endosc

journal_title

Gastrointestinal endoscopy

authors

Han KS,Sohn DK,Choi DH,Hong CW,Chang HJ,Lim SB,Choi HS,Jeong SY,Park JG

doi

10.1016/j.gie.2007.05.057

subject

Has Abstract

pub_date

2008-01-01 00:00:00

pages

97-102

issue

1

eissn

0016-5107

issn

1097-6779

pii

S0016-5107(07)02410-8

journal_volume

67

pub_type

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