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NCI is the nation's leader in cancer research.

Providing web-based training modules for cancer registration and surveillance

NCI is the nation's leader in cancer research.
NCI is the nation's leader in cancer research.
NCI is the nation's leader in cancer research.
  1. Home
  2. Site Specific Modules
  3. UGI Tract Cancer
  4. Anatomy
  • UGI Tract Cancer
    • Introduction
      • Risk Factors
      • Signs & Symptoms
      • Five-Year Survival Rates
      • Review
    • Anatomy
      • Esophagus
      • Stomach
      • Small Intestine
      • Layers of UGI Organs
      • Regional Lymph Nodes
      • Review
    • Abstracting, Coding, & Staging
      • ICD-O Site Codes
      • Morphology & Grade
      • Extent of Disease Evaluation
        • Physical Exam
        • Lab Tests
        • Imaging
        • Tumor Markers
        • Endoscopies
        • Operative Report
        • Pathology
      • Staging
      • Abstracting Keys
    • Treatment
      • Surgery (Esophagus & Small Intestine)
      • Radiation Therapy
      • Commonly Used Drugs

For hands-on exercises, please go to SEER*Educate.

UGI Tract Anatomy

This section provides an overview of the UGI tract anatomy.

Section Topics

  • Esophagus
  • Stomach
  • Small Intestine
  • Layers of the UGI Organs
  • Regional Lymph Nodes
  • Review

Previous

Review

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Esophagus

Suggested Citation

SEER Training Modules: UGI Tract Anatomy. U.S. National Institutes of Health, National Cancer Institute. Cited 21 December 2025. Available from: https://training.seer.cancer.gov.

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