Computed Tomography (CT) with Guided Lumbar Spine Biopsy
This procedure combines a CT scan of your lower spine with a small tissue sample taken from your spine for further examination.
["A CT-guided biopsy helps doctors assess spinal abnormalities, such as tumors or infections, by analyzing tissue under precise imaging guidance."]
Key facts at a glance
- LOINC
- 35905-9
- Short code
- CT Guided L-spine Bx
- Synonyms
- CT Guided L-spine Bx
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- ct
- 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 Is a CT-Guided Lumbar Spine Biopsy?
A CT-guided lumbar spine biopsy involves using real-time imaging to guide a needle into your spine. The needle collects a small tissue sample, which is then sent to a lab for microscopic analysis. This procedure helps diagnose conditions like spinal tumors, infections, or other abnormalities that may not be visible on standard imaging alone.
Why Would You Need This Test?
Your doctor may recommend this test if they suspect a spinal issue, such as a suspicious lesion, unexplained pain, or symptoms like numbness or weakness. It’s particularly useful when other imaging tests (like X-rays or MRIs) show areas that need further investigation.
How Is the Procedure Performed?
You’ll lie on your stomach on the CT table while a radiologist uses contrast dye to enhance visibility of your spine. The needle is inserted under CT guidance, and a small tissue sample is collected. The procedure usually takes 30–60 minutes and is performed in a hospital or imaging center.
What Are the Possible Risks?
While generally safe, risks include infection, bleeding, or nerve damage at the biopsy site. Rarely, complications like spinal fluid leakage or allergic reactions to contrast dye may occur. Your doctor will discuss risks with you before the procedure.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
This test provides a definitive tissue diagnosis for spinal conditions that imaging alone cannot confirm. It helps guide treatment decisions, such as whether surgery, radiation, or other therapies are needed for conditions like metastatic cancer, infections, or degenerative diseases.
Frequently asked questions
How long does it take to get results from the biopsy tissue analysis?
What preparation is needed before the biopsy?
Can I drive myself home after the biopsy?
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