Results: Of 200 patients examined with EUS, upper gastrointestina

Results: Of 200 patients examined with EUS, upper gastrointestinal submucosal leision was diagnosed in 102 cases (51%), upper gastr ointestinal benign mucosal lesion in 16 cases (8%), gastroesophogeal malignant tumor

in 20 cases (10%), metastastic lymph node of tumor in 10 cases (5%), bile and pancreatic diseases in 52 cases (26%), Biopsyspecimens enough for patholog ical diagnosis were acquired in 32 of 40 EUS-FNA (80%) patients. Conclusion: Echogastroscopy check details has important clinical value in the diagnosis and therapy of upper gastrointestinal and its adjacent lesions. Key Word(s): 1. Echogastroscopy; 2. Fine needle; 3. puncture; 4. tumor; Presenting Author: XUN HUAN Additional Authors: CAICHANG CHUN Corresponding Author: CAICHANG CHUN Affiliations: university of jiujiang Objective: Survey the role for simethicone to reduce air bubbles gastric mucus which are frequent sources of artifacts in endoscopic ultrsonography (EUS). Methods: 107 patients who referred for EUS examination in our hospital, they were randomized into two groups: the simethicone group and sterile group. To compare gastric mucus, MI-503 in vitro air bubbles and artifacts in the two groups. Results: The air bubbles in simethicone group is obviously less than sterile group, the difference was statistically significantly

(P < 0.05), the gastric mucus in simethicone group is less than sterile group, there was no significant difference. The ZD1839 in vitro artifacts in simethicone group is obviously less than sterile group, the difference was statistically significantly (P < 0.05). Conclusion: Simethicone improved endoscopic visualization and reduced artifacts during EUS. Key Word(s): 1. Application; 2. simethicone; 3. endoscopic; 4. ultrsonography; Presenting Author: LEI WANG Additional Authors: ZHENDONG JIN, ZHAOSHEN LI Corresponding Author: LEI WANG Affiliations: Changhai Hospital Objective: Though surgical resection is the primary choice for the treatment of pancreatic neuroendocrine tumors (pNETs), it still lacks effective

palliative treatment for cases with recurrence or loss of surgical indications. Radiofrequency has been widely used in clinical for tumor therapy and has showed benefits in the treatment of liver cancer and early esophageal cancers. Here we report a case of postoperative recurrence of pNET treated with EUS-guided radiofrequency. Methods: The patient is a 30-year-old woman presented with abdominal pain and haematemesis ten years ago. She underwent subtotal gastrectomy because of duodenal bulb stricture along with incomplete abstruction five years ago. Similar symptoms recurred after surgery. EUS revealed pancreatic neuroendocrine tumor. One year ago, the patient underwent the distal pancreatectomy and spleen-cholecystectomy. The pNET was confirmed pathologically (Figure 1).

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