Conclusion: The Occurrence mechanism of dyspepsia symptoms of the

Conclusion: The Occurrence mechanism of dyspepsia symptoms of the two groups maybe is different. GIST maybe preserve some ICC pacemaker activity and/or neurotransmitter

click here transfer function which is likely to interfere with the rhythmicity, power and spatial coordination of gastric slow wave, and result in the occurrence of the dyspepsia symptoms lastly. Key Word(s): 1. GIST; 2. ESD; Presenting Author: WEI ZHU Additional Authors: RUNHUA LI Corresponding Author: WEI ZHU Affiliations: Nanfang hospital Objective: To discuss the endoscopic morphological characteristics of PGML and define the value of strip biopsy in improving the diagnostic accuracy. Methods: The clinicopathological datum of 59 patients with PGML diagnosed in a university-affiliated hospital in southern China from January 2003 to December 2011 were retrospectively reviewed. Among these patients, ultrasound endoscope was carried out provided that routine gastroscopic biopsy failed to supply sufficient support for confirming a diagnosis. Otherwise, patients highly suspicious of malignancy with endoscopic features of obvious thickened gastric wall or disturbed mucosal structure

would undergo either endoscopic Trichostatin A price submucosal dissection (ESD) or endoscopic mucosal resection (EMR) to achieve strip biopsy, which would be sent for pathological evaluation and immunohistochemical typing. Results: Upper abdominal pain was reported as the most common symptoms (43 from 59 patients). Thirty patients (50.8%) had tumors mainly located in the stomach body. According to immunohistochemical staining results, 29 cases and 27 cases were diagnosed as diffuse large B-cell lymphoma (DLBCL) and mucosa-associated selleck products lymphoid tissue (MALT) lymphoma respectively. Endoscopic

patterns were recognized as follows: (a) the ulcerative in 69.5%, majority of which showed uplift-like ulcer (40.7%), (b) the polypoid in 13.6%, (c) the infiltrative in 8.5% and (d) the erosive in 8.5%. Histologically, 42.3% patients got clear diagnosis after routine biopsy, while further check confirmations were conducted for those 39.0% patients suspicious of lymphoma. Strip biopsy significantly improved the accuracy of diagnosis with a confirmed-positive rate of up to 86.9%. Conclusion: In our study, strip biopsy is proved to be an optimal technique to obtain higher diagnosis precision by acquiring larger mucosal samples for histological test. Key Word(s): 1. gastric lymphoma; 2. endoscopy; 3. ultrasound endoscopy; 4. strip biopsy; Presenting Author: XIU E YAN Additional Authors: LIYA ZHOU, SANREN LIN Corresponding Author: LIYA ZHOU Affiliations: Peking University Third Hospital Objective: Esophageal foreign body (FB) impaction is a common emergency in China. The aim of this study was to compare rigid versus flexible endoscopy in esophageal FB extraction in Beijing China.

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