Clinical and genomic characteristics of mucosal signet-ring cell carcinoma in Helicobacter pylori-uninfected stomach.

Background: Gastric cancer develops even in Helicobacter pylori(H. pylori)-uninfected patients and its typical histological feature is signet ring cell carcinoma (SRCC) within the mucosal layer. However, the biological characteristics of SRCC remain unclear.

The Evaluation of Esophageal Motility Using Infusion Manometry with a Trans-nasal Endoscope: A Preliminary Study.

Objective The Chicago classification using high-resolution manometry (HRM) has been proposed for the diagnosis of esophageal motility disorders. However, HRM is expensive, and few patients are likely to benefit from this method. We established a method using a raised infusion catheter called "esophageal manometry using a trans-nasal endoscope".

Clinical Usefulness of Dual Red Imaging in Gastric Endoscopic Submucosal Dissection: A Pilot Study.

Background/aims: Dual red imaging (DRI) is a new, image-enhanced endoscopy technique. There are few reports about the usefulness of DRI during gastric endoscopic submucosal dissection (ESD). We aimed to examine the usefulness of DRI in endoscopic hemostasis during gastric ESD.

Gastric Cancer with Submucosal Invasion after Successful Helicobacter pylori Eradication: A Propensity Score-Matched Analysis of Patients with Annual Patient Endoscopic Survey.

Background And Aim: The incidence of gastric cancer occurring after successful Helicobacter pylori eradication has been increasing. We aimed to clarify the influence of eradication therapy on the ability to diagnose early gastric cancer after successful H. pylori eradication in patients who underwent annual endoscopic screening.

Clinical Significance of Reddish Depressed Lesions Observed in the Gastric Mucosa after Helicobacter pylori Eradication.

Background And Aim: Reddish depressed lesions (RDLs) frequently observed in patients following Helicobacter pylori eradication are indistinguishable from gastric cancer. We examined the clinical and histological feature of RDLs and its relevant endoscopic diagnosis including magnifying narrow-band imaging (M-NBI).

Methods: We enrolled 301 consecutive patients with H.

Serological Evaluation of Gastric Cancer Risk Based on Pepsinogen and Helicobacter pylori Antibody: Relationship to Endoscopic Findings.

Backgrounds And Aims: The serological risk-prediction system combined the pepsinogen (PG) test, and anti-Helicobacter pylori antibody is available for evaluation of gastric cancer risk. In this system, chronic atrophic gastritis (CAG) or H. pylori infection is diagnosed.

Endoscopic findings of the gastric mucosa during long-term use of proton pump inhibitor - a multicenter study.

Background And Aim: It is clinically important to diagnose drug-induced gastric lesions correctly. Recently, the use of proton pump inhibitors (PPI) has increased worldwide. The histological features induced by PPI have been reported; however, few reports have described endoscopic findings induced by PPI.

Characteristics of gastric cancer in negative test of serum anti-Helicobacter pylori antibody and pepsinogen test: a multicenter study.

Background And Aim: The serological risk prediction system combines the pepsinogen test and anti-Helicobacter pylori (H. pylori) antibody determination. In this system, chronic atrophic gastritis (CAG) is diagnosed using the pepsinogen test.