Endoscopic examination of the esophagus with endoscopic ultrasound (EUS) and endoscopic biopsy
This test involves using an endoscope to examine the lining of your esophagus and take small tissue samples for further analysis. It helps identify abnormalities such as tumors, inflammation, or structural changes.
["EUS with biopsy helps diagnose and evaluate conditions affecting your esophagus."]
Key facts at a glance
- LOINC
- 111934-6
- Short code
- Dx Esoph Endscpy
- Synonyms
- Dx Esoph Endscpy
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- endoscopy
- Specimen volume
- 5 mL
- Stability
- Room temperature: 4h, Refrigerated: 24h, Frozen: 7d
- Hemolysis max
- 500
- Lipemia max
- 1000
- Icterus max
- 500
- TAT
- 4–24 hours
- Order
- routine
What to Expect Before the Procedure
You may be asked to fast for a few hours before the procedure, depending on your doctor’s instructions. Inform your healthcare provider about any medications you’re taking, especially blood thinners, as they may need to be adjusted. You’ll likely receive sedation to keep you comfortable during the procedure.
During the Procedure
A doctor will insert a thin, flexible tube (endoscope) through your mouth into your esophagus. Special ultrasound probes or biopsy tools may be attached to the endoscope to capture images or take tissue samples. The procedure usually takes 30 minutes to an hour.
After the Procedure
You may feel some mild discomfort or bloating after the procedure. You’ll likely need someone to drive you home due to sedation. Follow your doctor’s instructions on when to resume normal activities and any restrictions on diet or activity.
Why This Test Is Done
EUS with biopsy is often used to investigate symptoms like persistent heartburn, difficulty swallowing, unexplained weight loss, or abnormal test results from other diagnostic procedures. It can also help monitor conditions like esophageal cancer or gastroesophageal reflux disease (GERD).
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test provides detailed images of the esophagus and its layers, allowing doctors to detect early signs of cancer, inflammation, strictures, or other abnormalities. Biopsies help confirm diagnoses by examining tissue under a microscope, guiding treatment plans such as surgery, medication adjustments, or further testing.
Short name
EUS with biopsy
Frequently asked questions
How long will I need to prepare for this test?
Is the procedure painful?
What happens if a biopsy is taken?
Sources
- 1
- 2Lab Tests OnlineSource
- 3
Click any link to access the full source. PubMed Central (PMC) links provide free full-text access.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 16, 2026. · Read our editorial policy