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Related Concept Videos

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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Barrett Esophagus-II: Clinical Manifestations and Management01:21

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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.
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Esophageal Strictures-I: Introduction01:30

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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).
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Worldwide Esophageal Cancer Collaboration: pathologic staging data.

T W Rice1, L-Q Chen2, W L Hofstetter3

  • 1Cleveland Clinic, Cleveland, Ohio, USA. ricet@ccf.org.

Diseases of the Esophagus : Official Journal of the International Society for Diseases of the Esophagus
|October 13, 2016
PubMed
Summary
This summary is machine-generated.

This study analyzed esophageal cancer patient data, revealing distinct survival patterns for adenocarcinoma versus squamous cell carcinoma based on pathological staging. These findings inform future cancer staging revisions.

Keywords:
cancer stagingdecision-makingesophagectomyprognosticationsurvival

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Area of Science:

  • Oncology
  • Pathology
  • Epidemiology

Background:

  • Esophageal and esophagogastric junction cancers require accurate staging for effective treatment.
  • Previous staging systems may not fully capture prognostic factors for these cancers.
  • The Worldwide Esophageal Cancer Collaboration (WECC) aimed to improve pathological staging data.

Purpose of the Study:

  • To describe patient characteristics and non-risk-adjusted survival for esophageal cancer.
  • To evaluate pathological staging (pTNM) accuracy and its correlation with survival.
  • To provide data for the 8th edition of cancer staging manuals.

Main Methods:

  • Retrospective analysis of de-identified data from 13,300 patients across 33 institutions globally.
  • Data included demographics, comorbidities, cancer type (squamous cell carcinoma, adenocarcinoma), and pathological staging (pTNM, Grade).
  • All-cause mortality was tracked from the first management decision.

Main Results:

  • Adenocarcinoma (7,558 patients) and squamous cell carcinoma (5,631 patients) showed distinct, monotonic survival curves across pathological stages.
  • Survival differences between adenocarcinoma and squamous cell carcinoma were more pronounced when considering pT and pN stages together.
  • Survival for early-stage (pTis-1) adenocarcinoma was better than for squamous cell carcinoma.

Conclusions:

  • WECC pathological staging data offers improvements over the 7th edition, with a larger patient cohort and more variables.
  • The collected data will inform the 8th edition cancer staging manual after risk adjustment.
  • The reliance on pure pathological staging for esophageal cancer is diminishing.