Cytological Examination of Buccal Cells (for Screening or Confirmation)
This test involves collecting cells from your inner cheek to check for abnormalities that may require further evaluation, such as early signs of certain conditions.
["A simple, painless screening to assess cellular health in your mouth."]
Key facts at a glance
- LOINC
- 18501-7
- Short code
- Cyto Buccal Smear
- Synonyms
- Cyto Buccal Smear
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- cyto-stain
- 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
Your healthcare provider may recommend this test to screen for conditions like oral cancer, precancerous changes, or other cellular abnormalities. It can also be part of a general health assessment or follow-up for known risk factors.
What to Expect During the Procedure
The procedure is quick and painless. A healthcare professional will gently scrape a small sample of cells from your inner cheek using a specialized tool. No anesthesia is needed, and you may experience a slight tingling sensation.
Sample Collection and Preparation
The collected cells are typically preserved in a fixative solution and sent to a lab for microscopic examination. The lab analyzes the cells for any irregular patterns or signs of abnormal growth.
Possible Preparations or Restrictions
No special preparations are needed. Avoid brushing your teeth vigorously or using mouthwash for a few hours before the test to ensure accurate cell collection. Avoid eating or drinking for at least 30 minutes before the procedure if instructed.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
While buccal cytology screening is not a definitive diagnostic test for cancer, it can detect early signs of abnormal cells that may warrant further investigation, such as a biopsy. It is particularly useful in monitoring individuals at higher risk for oral or head and neck cancers, such as those with a history of smoking, heavy alcohol use, or genetic predispositions.
Short name
Buccal Cytology Screening
Frequently asked questions
What does a positive result mean?
How often should I get this test?
Can I prepare for this test at home?
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