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Related Concept Videos

Gastritis II: Pathophysiology01:26

Gastritis II: Pathophysiology

The pathophysiology of gastritis begins with the colonization of the stomach lining by Helicobacter pylori (H. pylori). This bacterium spreads mainly via the oral-oral route through saliva or shared utensils, and can also be transmitted in overcrowded or unhygienic environments through contaminated water, despite its brief survival outside the body.ColonizationOnce ingested, H. pylori enters the stomach and begins colonization by navigating through the mucus layer lining the stomach wall. It...
Pyloric Obstruction01:11

Pyloric Obstruction

Pyloric obstruction, also referred to as gastric outlet obstruction, is a condition characterized by narrowing or blockage at the pylorus—the muscular valve regulating the flow of stomach contents into the duodenum. When this passage becomes impaired, the stomach cannot effectively empty its contents into the small intestine. This disruption leads to a range of gastrointestinal symptoms, including early satiety, bloating, epigastric pain, postprandial nausea, persistent vomiting, and...
Gastritis-I: Introduction and Types01:27

Gastritis-I: Introduction and Types

Gastritis, defined by the inflammation or irritation of the stomach lining or gastric mucosa, manifests in several distinct forms: acute, chronic, reactive, and a specific subtype known as autoimmune metaplastic atrophic gastritis.
Acute gastritis presents as a sudden inflammation triggered by various stressors to the stomach lining, such as exposure to corrosive agents, local irritants like aspirin and other NSAIDs, alcohol consumption, radiation therapy, physical trauma, severe burns, sepsis,...
Barrett Esophagus-I: Introduction01:21

Barrett Esophagus-I: Introduction

Barrett's esophagus is a medical condition where the esophageal mucosa is significantly damaged by stomach acid or other digestive fluids, often due to long-term exposure associated with gastroesophageal reflux disease (GERD). In GERD, a weakened or abnormally relaxed lower esophageal sphincter allows stomach acid to flow persistently into the esophagus.
This constant acid exposure transforms the esophagus's pink mucosal lining (stratified squamous epithelium) into a type of lining more similar...
Gastritis III: Clinical Manifestations and Management01:23

Gastritis III: Clinical Manifestations and Management

The clinical manifestations of gastritis can vary depending on the cause and type of gastritis, but some common symptoms may include the following.
Clinical manifestations of acute gastritis
The patient with acute gastritis may have a rapid onset of symptoms, such as epigastric pain or discomfort, dyspepsia, anorexia, hiccups, or nausea and vomiting, which can last from a few hours to a few days. Erosive or hemorrhagic gastritis may cause bleeding, which may manifest as blood in vomit or as...
Barrett Esophagus-II: Clinical Manifestations and Management01:21

Barrett Esophagus-II: Clinical Manifestations and Management

Individuals with Barrett's esophagus are often asymptomatic, but they may experience symptoms commonly associated with GERD, such as heartburn and acid regurgitation. Additional symptoms can include difficulty swallowing, chest pain, unintentional weight loss, blood in the stool (which may appear black, tarry, or bloody), and episodes of vomiting.
To diagnose Barrett's esophagus, healthcare providers often recommend an endoscopy for those showing symptoms of acid reflux. The procedure entails...

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Related Experiment Video

Updated: Jun 27, 2026

Establishment and Evaluation of a Risk Prediction Model for Pathological Escalation of Gastric Low-Grade Intraepithelial Neoplasia
03:05

Establishment and Evaluation of a Risk Prediction Model for Pathological Escalation of Gastric Low-Grade Intraepithelial Neoplasia

Published on: February 16, 2024

[Early gastric cancer--or not].

E Burri1, R Nüesch, A Lugli

  • 1Medizinische Poliklinik, Universitätsspital Basel, Basel. burrie@uhbs.ch

Praxis
|December 17, 2008
PubMed
Summary
This summary is machine-generated.

A gastric polyp initially diagnosed as adenocarcinoma was found to be a neuroendocrine tumor. This case highlights the importance of accurate histopathological diagnosis for effective treatment of early gastric cancer.

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Last Updated: Jun 27, 2026

Establishment and Evaluation of a Risk Prediction Model for Pathological Escalation of Gastric Low-Grade Intraepithelial Neoplasia
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Published on: February 16, 2024

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Intraoperative Gastroscopy for Tumor Localization in Laparoscopic Surgery for Gastric Adenocarcinoma
10:31

Intraoperative Gastroscopy for Tumor Localization in Laparoscopic Surgery for Gastric Adenocarcinoma

Published on: August 9, 2016

Area of Science:

  • Gastroenterology
  • Surgical Oncology
  • Pathology

Background:

  • Early gastric cancer diagnosis often involves endoscopic evaluation and biopsy.
  • Adenocarcinoma is the most common type of gastric malignancy.
  • Neuroendocrine tumors (NETs) are rare gastric neoplasms with distinct biological behavior.

Observation:

  • A 46-year-old female presented with epigastric discomfort, and endoscopic biopsy revealed adenocarcinoma.
  • Endosonography indicated early-stage disease without metastasis or deep invasion.
  • Initial endoscopic submucosal dissection was complicated by bleeding, necessitating subtotal gastrectomy.

Findings:

  • Final histology unexpectedly identified a highly differentiated neuroendocrine tumor, revising the initial diagnosis.
  • The tumor was confined to the gastric wall, consistent with early-stage disease.
  • The discrepancy between initial biopsy and final pathology underscores diagnostic challenges.

Implications:

  • Accurate histopathological diagnosis is crucial for appropriate management of gastric tumors.
  • This case emphasizes the need for careful review of pathology, especially in discordant findings.
  • Understanding the nuances of gastric neuroendocrine tumors is vital for surgical and oncological planning.