Endoscopic features of lymphoid follicles in <scp><i>Helicobacter pylori</i></scp>‐associated chronic gastritis

Hayashi, Seishu; Imamura, Jun; Kimura, Kiminori; Saeki, Shunichi; Hishima, Tsunekazu

doi:10.1111/den.12335

Cited by 24 publications

(24 citation statements)

References 22 publications

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“…This endoscopic and histopathological association had been described previously by Sokmensuer et al11 Recently, Hayashi et al evaluated the endoscopic presence of gastric yellowish-white nodules in patients using narrow banding image and magnification and found an association with H. pylori infection 12…”

Section: Discussionsupporting

confidence: 72%

Diagnostic accuracy of nodular gastritis for H. pylori infection

Romero-Flores

Fernández-Rivero

Marroquín-Fabián

et al. 2016

TCRM

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BackgroundThe term nodular is not included in the Sydney classification and there is no widely accepted histopathological definition. It has been proposed that the presence of antral nodularity could predict Helicobacter pylori (H. pylori) infection. The aim of this study was to determine the diagnostic accuracy of nodular gastritis (NG) for H. pylori infection after a rigorous standardization process, and to describe the associated histopathological characteristics.Materials and methodsEndoscopic images of patients submitted to endoscopy with biopsy sampling were included. Endoscopic images were distributed among six endoscopists. The analysis was performed sequentially in three rounds: the first round assessed the interobserver variability, the second evaluated the intraobserver variability, and the third calculated the interobserver variability after training. A correlation analysis between endoscopic and histopathological findings was performed.ResultsA total of 917 studies were included. In the first analysis of interobserver variability, a poor kappa value (0.078) was obtained. The second evaluation yielded good intraobserver variability, with kappa values of 0.62–0.86. The evaluation of interobserver variability after training revealed an improvement in the kappa value of 0.42. A correlation was found between endoscopic images and histopathological reports.ConclusionThere was a strong correlation between NG and H. pylori, but only after rigorous evaluation. The use of the term NG requires extensive standardization before it can be used clinically.

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Section: Discussionsupporting

confidence: 72%

Diagnostic accuracy of nodular gastritis for H. pylori infection

Romero-Flores

Fernández-Rivero

Marroquín-Fabián

et al. 2016

TCRM

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“…The sensitivity of NBI for the diagnosis of intestinal metaplasia was significantly higher than that of WLI, although no significant difference was found between the accuracy of WLI and NBI for the diagnosis of H. pylori infection in a multicenter prospective study for the real‐time diagnosis of both WLI and NBI among five Western countries . Contrarily, yellowish‐white nodules visualized with NBI, which had a high specificity for the histological finding of lymphoid follicles in H. pylori ‐positive stomach, is suggested to be a predictive marker of nodular gastritis …”

Section: Iee For Diagnosis Of Kyoto Classification Of Gastritismentioning

confidence: 96%

“…45 Contrarily, yellowish-white nodules visualized with NBI, which had a high specificity for the histological finding of lymphoid follicles in H. pylori-positive stomach, is suggested to be a predictive marker of nodular gastritis. 46…”

Section: Nbimentioning

confidence: 99%

Can image‐enhanced endoscopy improve the diagnosis of Kyoto classification of gastritis in the clinical setting?

Dohi

Majima

Naito

et al. 2019

Digestive Endoscopy

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Endoscopic diagnosis of Helicobacter pylori (H. pylori) infection, the most common cause of gastric cancer, is very important to clarify high-risk patients of gastric cancer for reducing morbidity and mortality of gastric cancer. Recently, the Kyoto classification of gastritis was developed based on the endoscopic characteristics of H. pylori infection-associated gastritis for clarifying H. pylori infection status and evaluating risk factors of gastric cancer. Recently, magnifying endoscopy with narrow-band imaging (NBI) has reported benefits of the accuracy and reproducibility of endoscopic diagnosis for H. pylori-related premalignant lesions. In addition to NBI, various types of image-enhanced endoscopies (IEEs) are available including autofluorescence imaging, blue laser imaging, and linked color imaging. This review focuses on understanding the clinical applications and the corresponding evidences shown to improve the diagnosis of gastritis based on Kyoto classification using currently available advanced technologies of IEEs.

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“…It may be that gastric nodularity is the normal manifestation of the host immune response to chronic infection of gastric mucosa in children. It is generally thought that lymphoid follicles with germinal centers (GC) create the nodules on the gastric mucosa, and histological findings of NG include lymphoid hyperplasia . Therefore, NG appears to be gastric nodularity induced as a result of chronic inflammation and lymphoid hyperplasia caused by chronic bacterial infection, which is manifested predominantly in the antrum.…”

Section: Discussionmentioning

confidence: 99%

Host response genes associated with nodular gastritis in Helicobacter pylori infection

Ikuse

Ohtsuka

Obayashi

et al. 2018

Pediatrics International

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Endoscopic features of lymphoid follicles in Helicobacter pylori‐associated chronic gastritis

Abstract: The endoscopic finding of YWN could be observed at any site of the gastric mucosa in H. pylori-associated gastritis, and represented histological lymphoid follicles.

Cited by 24 publications

References 22 publications

Diagnostic accuracy of nodular gastritis for H. pylori infection

Diagnostic accuracy of nodular gastritis for H. pylori infection

Can image‐enhanced endoscopy improve the diagnosis of Kyoto classification of gastritis in the clinical setting?

Host response genes associated with nodular gastritis in Helicobacter pylori infection

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