Tumor Marker Test for Foot-Specific Metastatic Screening (Osteosarcoma or Soft Tissue Sarcoma)
This test measures biomarkers associated with certain cancers that may have spread to the foot, helping doctors assess risk or monitor treatment.
["Early detection of cancer spread can improve treatment options and outcomes."]
Key facts at a glance
- LOINC
- 35992-7
- Short code
- XR tomo Foot
- Synonyms
- XR tomo Foot
- Category
- chemistry
- Sample
- serum
- Container
- Red-top tube (SST)
- Units
- N/A
- Fasting
- false
- Population
- adult
- Sex
- all
- Age range
- 18–65 years
- Method
- xr-tomography
- 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 This Test Measures
The test evaluates specific proteins (markers) produced by tumors, such as those linked to osteosarcoma (bone cancer) or soft tissue sarcomas. These markers may appear in blood or other body fluids if cancer has spread to the foot area. The test is not a standard general cancer marker but is tailored for patients with known or suspected foot-related malignancies.
Why It Might Be Ordered
Your healthcare provider may recommend this test if you have a history of foot cancer, symptoms like unexplained pain or swelling in the foot, or if you’re undergoing treatment for a foot-related malignancy. It’s also used in follow-up to check for recurrence or spread.
How the Test Works
Blood or other fluid samples are collected and analyzed using advanced techniques like immunoassays or mass spectrometry to detect abnormal protein levels. Results are compared to baseline or expected ranges for the specific markers being tested.
Preparation and Process
No special preparation is needed, but you may be asked to fast for a few hours if blood is drawn. The test typically takes a few days to return results, depending on lab processing.
Clinical interpretation
How abnormal results are interpreted and what conditions they suggest.
◆Associated findings1
Frequently asked questions
This test helps identify if cancer has spread to the foot, guiding treatment decisions. While not a definitive diagnostic tool, it supports overall cancer management by providing critical information about tumor activity.
How often will I need this test? It depends on your treatment plan and medical history. Your doctor will determine the frequency based on your individual needs.
Are there any risks or side effects? Drawing blood or collecting other fluids is generally safe, but you may experience mild discomfort or bruising at the site.
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