INTRODUCTION Amyloidosis most often manifests as a systemic involvement of multiple tissues and organs, and an amyloidal deposit confined to the stomach is extremely rare. It is sometimes difficult to provide a definitive diagnosis of localized gastric amyloidosis by biopsy specimen and diagnosis of amyloidosis in some cases has been finalized only after surgical resection of the stomach. CAS...

Metastasis to the prostate gland from gastric cancer is exceedingly rare. We have presented a rare case of gastric malignancy metastasizing to the prostate diagnosed by transrectal ultrasound guided prostate biopsy.

BACKGROUND Helicobacter pylori-induced peptic ulceration is less likely to occur in patients with a strong gastric anti-inflammatory regulatory T cell (Treg) response. Migration of Tregs into the gastric mucosa is therefore important. OBJECTIVE To identify the homing receptors involved in directing Tregs to the gastric mucosa, and investigate how H pylori stimulates the relevant chemokine res...

The canine-adapted Helicobacter bizzozeronii is the only nonpylori Helicobacter species isolated from human gastric biopsy tissue. Here we present the genome sequence of strain CIII-1, isolated from a 45-year-old female patient with severe gastric symptoms. This is the first genome sequence of nonpylori gastric Helicobacter isolated from human gastritis.

AIMS To determine whether an adequate histological diagnosis of gastric polyps can be attained on the basis of forceps biopsy. PATIENTS AND METHODS In a prospective multicentre study, 194 patients with 222 endoscopically removable gastric polyps (>or=5 mm) underwent forceps biopsy and complete polypectomy. Patients with fundic gland polyps and polyposis syndrome were not included. Specimens w...

To determine whether transportation time and use of a low budget transport medium (NaCl 0.9%) would influence culture of Helicobacter pylori from gastric biopsy specimens, upper gastrointestinal endoscopy was performed on 42 patients. The specimens were cultured and examined histologically, and H pylori antibodies were determined using an ELISA technique. Patients were regarded as H pylori posi...

BACKGROUND This study was to determine the sensitivity, specificity, positive predictive value (PPV), negative predictive values (NPV) and agreement between two methods of the stained gastric imprint cytology smears and stained gastric specimen biopsy mucosal methods for detection of H. pylori. METHODS Air-dried imprint smears of gastric biopsies from 330 patients were stained by the Grunwald...

AIM To explore how often a diagnosis of gastric neoplasia is made on routine, non-targeted biopsies taken for determination of Helicobacter pylori status, compared with directed biopsies from endoscopically abnormal mucosa. METHODS Records of all patients with a biopsy diagnosis of gastric cancer or dysplasia during a two year period were reviewed to determine whether the biopsy had been targ...

OBJECTIVE To accurately measure the incidence of gastric cancer among patients with gastric precancerous lesions, and to quantify the excess incidence in comparison with people with normal mucosa on endoscopy and a general population. DESIGN Population based cohort study. SETTING Population of Sweden using data from its national disease registers. PARTICIPANTS 405,172 patients who had gas...

BACKGROUND/AIMS The diagnostic efficacy of current tissue sampling techniques for gastric subepithelial tumors (SETs) is limited. Better tissue sampling techniques are needed to improve pathological diagnosis. The aim of this study was to evaluate the safety and efficacy of a new technique, mucosal incision and forceps biopsy, for reliable tissue sampling of gastric SETs. METHODS This study e...