Duodenal Endoscopic Aspirate for Cytology (Cellular Analysis)
This test involves collecting cells from your duodenum—the first part of your small intestine—using an endoscope. It helps examine the cellular makeup for signs of abnormalities, such as inflammation, infection, or cancer.
["Assessing duodenal cell health may help diagnose gastrointestinal issues or monitor conditions like celiac disease or gastrointestinal cancers."]
Key facts at a glance
- LOINC
- 111949-4
- Short code
- Site Duodenum Endscpy
- Synonyms
- Site Duodenum 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
Why This Test Is Done
Doctors may order this test if you have symptoms like unexplained weight loss, persistent nausea, vomiting, or abdominal pain. It’s also used when there’s suspicion of conditions like gastrointestinal cancers, celiac disease, or other intestinal disorders. Sometimes, it’s performed as part of a broader diagnostic evaluation for unexplained digestive issues.
How the Test Is Performed
You’ll likely be given a sedative to relax during the procedure. An endoscope—a thin, flexible tube with a light and camera—is inserted through your mouth into your stomach and duodenum. A small sample of cells is carefully collected from the duodenal lining using a specialized tool. The procedure usually takes about 15–30 minutes.
What to Expect After the Test
After the procedure, you may feel mild discomfort or bloating, but most people return to normal activities within a few hours. You’ll need someone to drive you home if you received sedation. Avoid heavy meals or alcohol for a few hours afterward.
Sample Collection and Processing
The collected cells are sent to a lab for microscopic examination. A pathologist will analyze the sample to identify any abnormal cells, inflammation, or other notable features. This test does not provide quantitative measurements of specific substances but focuses on qualitative cellular assessment.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Short name
Duodenal Cytology
Frequently asked questions
What does a positive or abnormal result mean?
How long will I need to wait for results?
Is this test painful?
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