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Biopsy samples taken from your esophagus (typically during an endoscopy) are studied by a doctor with special training, called a pathologist. After testing the samples, the pathologist creates a report on what was found. Your doctor can then use the pathology report to help manage your care.
The information here is meant to help you understand medical terms you might find in your pathology report after an esophageal biopsy.
The esophagus is a tubular organ that connects the mouth to the stomach.
The esophagus meets the stomach at a place called the gastro-esophageal junction, or GEJ. When you’re eating or drinking, a special ring of muscle near the GEJ, called the lower esophageal sphincter (LES), opens to allow food and liquids in the esophagus to enter the stomach. At other times, the LES normally stays closed to keep the stomach’s acid and digestive juices from going back up into the esophagus.
Normally, the inner lining of the esophagus (mucosa) is made up mainly of squamous cells. Squamous cells are flat cells that look like fish scales when viewed with a microscope.
A number of things can injure the squamous lining of the esophagus. For example, in some people, acid can back up from the stomach into the lower part of the esophagus. The medical term for this is gastroesophageal reflux disease (GERD), or just reflux. Certain medicines and infections can also damage the lining of the esophagus.
The esophagus reacts to the damage by trying to repair itself. This creates reactive changes that can be seen under the microscope.
Having reactive changes in your esophagus does not mean that you will get cancer. Still, the process that is causing the reactive changes needs to be treated so the esophagus can heal and the lining can go back to normal.
As noted above, when stomach contents back up into the esophagus, it is called reflux. The contents of the stomach contain acid, and when the esophagus is exposed to the acid over a long time it can damage its squamous lining. This causes certain changes that the pathologist can see with a microscope.
Reflux most commonly causes reactive changes in the lining of the esophagus. By itself, reflux does not cause cancer. However, if reflux occurs over a long time, it can also lead to other changes in the lining of the esophagus that can increase the risk of cancer, such as Barrett’s esophagus. because of this, reflux is considered a risk factor for cancer of the esophagus.
Your doctor will work with you to treat your reflux, which might help prevent more problems from developing in your esophagus.
If your report mentions gastric cardiac-type mucosa, it means that the cardia, which is the part of the stomach near where it connects to the esophagus, was also biopsied when the esophagus was biopsied.
Your report might also mention reactive changes or inflammation in the cardiac-type mucosa, which are responses by these cells to being irritated.
Inflammation can be caused by acid from the stomach or by infection. The most common cause of infection is the bacteria Helicobacter pylori (also known as just H pylori). When the stomach gets infected with H pylori, it can cause problems like gastritis (irritation of the stomach) and stomach ulcers.
If you have these types of changes, your doctor will talk to you about possible treatment options.
The American Cancer Society medical and editorial content team
Our team is made up of doctors and oncology certified nurses with deep knowledge of cancer care as well as editors and translators with extensive experience in medical writing.
Last Revised: July 7, 2023
American Cancer Society medical information is copyrighted material. For reprint requests, please see our Content Usage Policy.
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