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KITEXON 17 Mutation (Serum) – Tumor Mutation Analysis

Published: August 9, 2026Updated: August 16, 2026

This test checks for specific genetic changes (mutations) in the KIT gene, which may be linked to certain cancers or blood disorders.

Quick summary

["Helps determine if a tumor or blood condition may respond to targeted treatments based on genetic differences."]

Medically reviewed by WellAlly Editorial TeamLast reviewed August 16, 2026Editorial policy

Key facts at a glance

LOINC
87731-6
Short code
KIT Exon 17 Mut Anl Bld/T
Synonyms
KIT Exon 17 Mut Anl Bld/T
Category
chemistry
Sample
whole-blood
Container
Lavender-top (EDTA)
Units
N/A
Fasting
false
Population
adult
Sex
all
Age range
18–65 years
Method
molgen
Specimen volume
3 mL
Stability
Room temperature: 4h, Refrigerated: 24h
Hemolysis max
0
Lipemia max
0
Icterus max
0
TAT
4–24 hours
Order
routine

Why This Test Might Be Ordered

Your doctor may recommend this test if you have a suspected or diagnosed cancer (such as gastrointestinal stromal tumor, or GIST) or a blood-related condition where KIT gene mutations are known to play a role. It’s also used in research or clinical trials involving precision medicine.

How the Test Works

A small sample of your blood (serum) is collected and analyzed using advanced genetic testing to identify mutations in the KIT gene. This helps doctors understand if your condition may be targeted by specific therapies.

What to Expect Before the Test

No special preparation is needed. You’ll have a simple blood draw, similar to other routine blood tests. Results may take several days to weeks, depending on lab processing and testing complexity.

What the Results Mean

If mutations are found, they may guide treatment choices, such as targeted drugs like imatinib or other therapies. If no mutations are detected, it doesn’t rule out other possible causes of your symptoms.

Clinical interpretation

How abnormal results are interpreted and what conditions they suggest.

Clinical Significance: Genetic mutations in the KIT gene can drive certain cancers or blood disorders, influencing treatment options. Detecting these mutations helps doctors tailor therapies to your specific genetic profile, potentially improving outcomes.

Short name

KITEXON 17 Mutation Test

Frequently asked questions

Will this test show if I have cancer?
This test looks for specific KIT gene mutations that may be present in certain cancers or blood disorders. While it can help identify mutations linked to these conditions, it’s not a general cancer screening test. Your doctor will discuss the full clinical picture.
How long will I wait for results?
Results can take several days to weeks, depending on lab workflow and testing complexity. Your healthcare provider will contact you once results are ready.
Can I eat or drink before this test?
No special diet or fasting is required for this blood test. You may eat and drink normally before your appointment.
  1. 1
    MedlinePlus — Laboratory TestsSource
  2. 2
    Lab Tests OnlineSource
  3. 3
    Mayo Clinic — Tests & ProceduresSource

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.

Medical Disclaimer

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