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Related Concept Videos

Barrett Esophagus-II: Clinical Manifestations and Management01:21

Barrett Esophagus-II: Clinical Manifestations and Management

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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...
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Esophageal Strictures-I: Introduction01:30

Esophageal Strictures-I: Introduction

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Esophageal strictures involve abnormal narrowing or tightening of the esophagus. They vary in length and severity, ranging from mild constriction to complete obstruction, and are classified as benign (noncancerous) or malignant (cancerous).
Etiology
The primary cause of esophageal strictures is long-standing gastroesophageal reflux disease (GERD), accounting for about 70 to 80% of adult cases. Chronic acid reflux can lead to injury and scarring of the esophageal lining, culminating in...
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Barrett Esophagus-I: Introduction01:21

Barrett Esophagus-I: Introduction

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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...
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Gastroesophageal Reflux Disease I: Meaning and Pathophysiology01:29

Gastroesophageal Reflux Disease I: Meaning and Pathophysiology

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Gastroesophageal Reflux Disease (GERD) involves the recurrent backflow of the stomach or duodenal contents into the esophagus, leading to troublesome symptoms and potential esophageal mucosal damage. Although GERD is often referred to as a disease, it is more accurately described as a syndrome, as it encompasses a range of symptoms and complications rather than a singular pathological entity, impacting a large number of individuals as the most prevalent upper gastrointestinal problem. Roughly...
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Esophagus01:24

Esophagus

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The esophagus, a muscular conduit linking the pharynx and stomach, measures roughly 10 inches (25.4 cm) and sits behind the trachea. It remains collapsed when not swallowing. The esophagus follows a predominantly straight path through the thoracic mediastinum and enters the abdominal cavity through a diaphragmatic opening known as the esophageal hiatus.
The movement of edibles from the pharynx into the esophagus is facilitated by the upper esophageal sphincter, which is formed primarily by the...
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Gastroesophageal Reflux Disease II: Clinical Features and Management01:29

Gastroesophageal Reflux Disease II: Clinical Features and Management

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Gastroesophageal reflux disease, or GERD, is a persistent medical condition that affects many individuals worldwide. Its clinical manifestations can vary greatly, making diagnosis and management challenging for healthcare professionals. The following is a comprehensive overview of the clinical manifestations, assessment, and management strategies for GERD.
Clinical Manifestations
GERD presents itself in a multitude of ways, with symptoms varying from person to person. The hallmark symptoms are...
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Related Experiment Video

Updated: Apr 7, 2026

Author Spotlight: Investigating the Pathophysiology of Eosinophilic Esophagitis
03:23

Author Spotlight: Investigating the Pathophysiology of Eosinophilic Esophagitis

Published on: May 10, 2024

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[Eosinophilic esophagitis].

Hiroaki Kusunose, Shuichi Ohara

    Nihon Rinsho. Japanese Journal of Clinical Medicine
    |July 14, 2015
    PubMed
    Summary
    This summary is machine-generated.

    Eosinophilic esophagitis (EoE) is an allergic immune condition triggered by allergens, causing esophageal inflammation and dysphagia. Diagnosis requires identifying eosinophils in biopsies, with proton-pump inhibitors as a primary treatment.

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    Development of Compendium for Esophageal Squamous Cell Carcinoma
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    Development of Compendium for Esophageal Squamous Cell Carcinoma
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    Area of Science:

    • Gastroenterology
    • Immunology
    • Allergy

    Context:

    • Eosinophilic esophagitis (EoE) is a growing clinical concern with increasing prevalence.
    • EoE is characterized by eosinophilic infiltration of the esophageal mucosa, leading to immune reactions and symptoms like dysphagia.
    • Elevated IgE levels and high rates of allergic diseases suggest an antigen-driven immune process in EoE.

    Purpose:

    • To summarize the clinicopathologic features, diagnostic criteria, and therapeutic options for eosinophilic esophagitis.
    • To highlight the role of allergens in triggering EoE.
    • To discuss current and emerging treatment strategies for EoE.

    Summary:

    • EoE diagnosis requires identifying at least 20 eosinophils per high-power field (HPF) in esophageal mucosal biopsies.
    • Proton-pump inhibitors (PPIs) are the recommended first-line treatment for patients with suspected EoE.
    • Established therapies include corticosteroids, dietary elimination, and esophageal dilation, with topical glucocorticoids showing recent promise.

    Impact:

    • Improved understanding of EoE pathogenesis and diagnosis.
    • Guidance on appropriate first-line and alternative treatment strategies for EoE.
    • Potential for novel therapeutic approaches, such as local glucocorticoid administration.