12 results match your criteria: "Department of Gastrointestinal Endoscopy NTT Medical Center Tokyo Tokyo Japan.[Affiliation]"

Article Synopsis
  • A multicenter study assessed the safety and mid-term outcomes of classical laparoscopic and endoscopic cooperative surgery (LECS) for treating gastric submucosal tumors (G-SMTs) following national health insurance coverage.
  • The study involved 201 patients across 21 institutions from April 2014 to March 2016, identifying classical LECS as the most common procedure performed, with a good resection rate and manageable complications.
  • Results indicated that while most surgeries had favorable outcomes, postoperative complications occurred in 5% of cases, emphasizing the general effectiveness of these methods in clinical practice.
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Large ileal lipomas over 2 cm can cause symptoms, that may require a resection. Due to the narrow lumen and thin walls of the ileum, endoscopic treatments can have a high risk of adverse events and require technical expertise, thus surgical resection is currently the mainstay of treatment. To overcome the technical challenges, we developed a novel method to endoscopically resect terminal ileal lipomas.

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Article Synopsis
  • This study investigates long-term surveillance for gastric cancer, particularly focusing on cases diagnosed 10 or more years after initial treatment.
  • It analyzes 377 patients across 14 institutions, revealing that invasive cancers diagnosed after 10 years tend to be more aggressive and have a higher pathological stage compared to those diagnosed sooner.
  • The findings emphasize the importance of ongoing surveillance for all patients, regardless of mucosal atrophy, especially after 10 years post-eradication.
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A 57-year-old woman with no significant medical history was referred after a colonoscopy for abdominal distension, which revealed a tumor in the lower rectum. Pre-operative colonoscopy showed the tumor was 12 mm in size, located from the anorectal junction to beyond the dentate line, and was diagnosed as high-grade intramucosal neoplasia or shallow submucosal invasive cancer. Endoscopic submucosal dissection was performed, and the lesion was resected en bloc.

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A 25-year-old man was referred to our center for investigation of a gastric submucosal tumor and an ulcer that had developed on its oral side. Endoscopic ultrasonography findings suggested the presence of an ectopic pancreas, and treatment with an oral proton pump inhibitor was planned for the ulcer. Over the subsequent 3 years, the patient endured recurring epigastric pain and episodes of passing black stools.

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A 51-year-old woman visited our hospital with the chief complaint of tarry stools. Contrast-enhanced abdominal computed tomography revealed leakage of contrast medium into the lumen of the small intestine. Subsequently, a double-balloon endoscopy was performed, which revealed a submucosal mass-like lesion in the jejunum.

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Objectives: Previous studies of cold snare polypectomy (CSP) for sessile serrated lesions (SSLs) ≥10 mm were performed by experienced endoscopists, and therefore their skills might have significantly influenced results. In this study, we compared the efficacy and safety of CSP for SSLs ≥10 mm between experienced and trainee endoscopists.

Methods: In a 1:1 propensity score matched retrospective cohort study, we compared the complete resection rate, en-bloc resection rate, adverse event rate, and procedure time between experienced and trainee groups.

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We present the case of a 45-year-old man who underwent a screening total colonoscopy and developed delayed perforation after a cold snare polypectomy in the descending colon and sigmoid colon. The patient developed abdominal pain and was referred to our department for further evaluation and treatment. On clinical examination, we noted lower abdominal tenderness, mild rebound pain, and elevated levels of inflammatory markers.

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While duodenal neoplasms of the gastric phenotype are uncommon and their natural history is unknown, gastric neoplasms of gastric phenotype reportedly grow rapidly and can invade the submucosa. Several studies suggest that duodenal neoplasms of gastric phenotype might have a high risk of deep invasion and lymph node metastasis. Duodenal neoplasms of gastric phenotype might also have a high biological malignancy and likely require early treatment if detected.

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Endoscopic submucosal dissection (ESD) is the standard endoscopic treatment for early esophageal cancer. Esophageal stricture often occurs at the site of ESD for large lesions. When treating a metachronous lesion appearing at the severe stricture, it may be difficult to negotiate a conventional endoscope through the stricture.

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Background And Aim: With the increasing prevalence of persons without (HP) infection, cases of HP-negative gastric cancer are increasing. Although rare, cases of differentiated adenocarcinoma of the antrum have been reported in HP-negative patients. We collected cases with such lesions and investigated their endoscopic and histological features.

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Article Synopsis
  • Endoscopic submucosal dissection (ESD) for esophageal cancer can lead to strictures, making it difficult to treat new lesions that develop nearby.
  • A 68-year-old man who has had multiple ESDs was found to have a new lesion close to an existing post-ESD stricture and on another scar, complicating treatment options.
  • Despite the challenges posed by severe fibrosis in the area, doctors attempted to perform ESD using a transoral endoscope after gradually dilating the post-ESD stricture.
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