Esophageal culture is a laboratory test that checks for infection-causing germs in a sample of tissue from the esophagus.
A sample of tissue from your esophagus is needed. The sample is taken during a procedure called esophagogastroduodenoscopy (EGD).
The sample is sent to a lab. There, it is placed in a special dish (culture) and watched for the growth of bacteria, fungus, or virus.
Other tests may be done to determine what medicine can best treat the organism.
Follow your health care provider's instructions on how to prepare for EGD.
During EGD, you will receive medicine to relax you. You may have some discomfort or feel like gagging as the endoscope is passed through your mouth and throat into the esophagus. This feeling will go away shortly.
Your doctor may order this test if you have signs or symptoms of an esophageal infection or disease. You may also have the test if an ongoing infection does not get better with treatment.
A normal result means that no germs grew in the laboratory dish.
Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
An abnormal result means germs grew in the laboratory dish. This is a sign of an infection of the esophagus, which may be due to bacteria, virus, or fungus.
Risks are related to the EGD procedure. Your health care provider can explain these risks.
Culture - esophageal
Falk GW, Katzka DA. Diseases of the esophagus. In: Goldman L, Schafer AI, eds. Goldman's Cecil Medicine. 24th ed. Philadelphia, Pa: Elsevier Saunders; 2011:chap 140.
Katzka DA. Esophageal disorders caused by medications, trauma, and infection. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger and Fordtran's Gastrointestinal and Liver Disease Pathophysiology/Diagnosis/Management. 9th ed. Philadelphia, Pa: Elsevier Saunders; 2010:chap 45.
Updated by: George F. Longstreth, MD, Department of Gastroenterology, Kaiser Permanente Medical Care Program, San Diego, California. Also reviewed by David Zieve, MD, MHA, Bethanne Black, and the A.D.A.M. Editorial team.
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