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Beginner 4 min readSource checked

What Is Esophageal Cancer?

Just been diagnosed with Esophageal Cancer? Start here instead

A plain-language overview of esophageal cancer, where it starts, and its two most common types, based on National Cancer Institute resources.

NCI source

NCI last reviewed source: 2025-05-12

A young man talks with a female clinician or counselor while seated
A young man talks with a female clinician or counselor while seated

Key fact

Esophageal cancer is cancer that forms in the tissues of the esophagus.

The short answer

Esophageal cancer is cancer that forms in the tissues of the esophagus, the muscular tube that moves food and liquid from the throat to the stomach. It starts on the inside lining and grows outward. The two most common types are squamous cell carcinoma and adenocarcinoma.

  • Esophageal cancer is cancer that forms in the tissues of the esophagus.

  • The esophagus is the muscular tube that moves food and liquid from the throat to the stomach.

  • Esophageal cancer starts on the inside lining and grows outward through the other layers.

  • The two most common types are squamous cell carcinoma and adenocarcinoma.

Subjective: What you might experience

This section describes the symptoms and history a patient might report to their doctor.

Trouble or pain with swallowing (dysphagia), often worsening from solids to liquids over time.

Unintentional weight loss.

Chest pain, pressure, or burning behind the breastbone.

Hoarseness, chronic cough, or worsening heartburn/indigestion.

Risk history

chronic acid reflux/Barrett esophagus, smoking, heavy alcohol use, obesity.

Objective: Tests and findings

Upper endoscopy (EGD) to view the esophagus and take biopsies

the key diagnostic test.

Biopsy for tissue diagnosis and HER2/PD-L1 testing when relevant.

Endoscopic ultrasound to assess how deep the tumor invades and nearby nodes.

CT of chest/abdomen and PET scan to evaluate spread.

Barium swallow in some cases to show narrowing.

Interactive anatomy guide

Explore where cancers start and how they are found, on an interactive body map.

Open the anatomy guide

Assessment: Staging and prognosis

Diagnosis confirmed by biopsy; main types are squamous cell carcinoma and adenocarcinoma.

Staged with the TNM system reflecting depth of invasion, nodes, and metastasis.

Tumor location and cell type influence treatment choice.

Nutritional status assessed because swallowing difficulty affects intake.

Plan: The treatment approach

Early/localized

endoscopic resection or surgery (esophagectomy).

Locally advanced

chemotherapy plus radiation, often before surgery.

Advanced

chemotherapy, targeted therapy (e.g., HER2), immunotherapy, or clinical trials.

Nutritional support and measures to relieve swallowing difficulty (stent, feeding support).

Follow-up endoscopy and imaging.

These are simplified, educational SOAP-style summaries showing the kinds of findings clinicians document when evaluating each cancer, based on National Cancer Institute resources. They describe typical diagnostic criteria and workups — not a real patient, and not medical advice. Real clinical notes are individualized. Always rely on your own care team. Based on National Cancer Institute educational content. Educational only — not medical advice.

Words to know

Tap any term to see what it means.

Browse the full glossary →

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Common questions

What is esophageal cancer?

Esophageal cancer is a disease in which cancer (malignant) cells form in the tissues of the esophagus. The esophagus is the hollow, muscular tube that moves food and liquid from the throat to the stomach.

How does esophageal cancer grow?

The wall of the esophagus is made up of several layers of tissue, including a mucous membrane, muscle, and connective tissue. Esophageal cancer starts on the inside lining of the esophagus and spreads outward through the other layers as it grows.

What are the two most common types of esophageal cancer?

The two most common forms are squamous cell carcinoma and adenocarcinoma. They are named for the type of cells that become cancerous. These two types tend to form in different parts of the esophagus.

What is squamous cell carcinoma of the esophagus?

Squamous cell carcinoma is cancer that forms in the thin, flat cells lining the inside of the esophagus. It is most often found in the upper and middle part of the esophagus, but it can occur anywhere along the esophagus. It is also called epidermoid carcinoma.

What is adenocarcinoma of the esophagus?

Adenocarcinoma is cancer that begins in glandular cells. Glandular cells in the lining of the esophagus produce and release fluids such as mucus. Adenocarcinomas usually form in the lower part of the esophagus, near the stomach.

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Knowledge Check

0 of 4 answered

  1. Q1.According to this article, what is the esophagus?
  2. Q2.According to this article, where does esophageal cancer start?
  3. Q3.According to this article, what are the two most common types of esophageal cancer?
  4. Q4.According to this article, where does adenocarcinoma of the esophagus usually form?

This self-assessment checks understanding of educational content only. It is not medical advice.

Plain-language explanation of the published sources cited on this page. AI-assisted, source-checked, not clinician-reviewed.

Sources last checked: 2026-07-21 what this meansLast updated: 2026-08-11Next planned review: 2027-07-21

How this page was created

Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.

Editorial status — Source checked. This page was written with AI assistance and checked line by line against the sources listed on it. That confirms the sources support what the page says. It is not a medical review, and it does not confirm the page is complete or right for your situation.

General education — varies by person. Answers genuinely differ between people. This page explains what commonly varies and points you to your care team for your situation.

Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.

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How this page was created

Cancer Explained does not originate medical claims. Every page restates guidance already published by the National Cancer Institute, the CDC, the USPSTF and the FDA, in plain language, with the source cited so you can check the original yourself. AI does the translating and organizing; automated checks test claims, citations, clarity and safety before anything publishes. We do not employ clinicians and do not intend to — our work is translation and navigation, not clinical judgment. Nothing here is personal medical advice, and no page can account for your particular situation.

Editorial status: Source checked This page was written with AI assistance and checked line by line against the sources listed on it. That confirms the sources support what the page says. It is not a medical review, and it does not confirm the page is complete or right for your situation.

Human medical review: not completed. Pages here are not signed off by a clinician before they publish. That is not an oversight we are quietly working around: we restate published guidance and cite it, so the authority belongs to the source rather than to us, and every page names where its claims come from — you can verify us instead of trusting us. Where a volunteer clinician has reviewed a page, their name and credentials appear on it; where no name appears, no clinician has checked it. We are glad to have reviewers and are recruiting them, and we do not hold pages back waiting for one. Use this site to understand your situation and to ask better questions of the people treating you.

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