What's this test for?

This test is ideal if you're being evaluated for a soft tissue tumor and your care team needs more clarity than a standard biopsy can give. It looks for a specific genetic rearrangement in the FUS gene that is linked to certain sarcomas, including myxoid-round cell liposarcoma. It's typically used when imaging and tissue samples alone can't confirm whether a tumor is benign or malignant.

What's included in this test?

This test uses a break-apart FISH probe to look specifically at the FUS gene region on chromosome 16. It matters because rearrangements in this single gene region are tied to specific tumor types, so a focused, definitive answer here can guide diagnosis and treatment decisions in ways that general tissue exams cannot.

What happens after I get my results?

Your results will be available in your account, with an explanation of what a positive or negative finding for the FUS gene rearrangement means. Because this is a specialized diagnostic test tied to tumor evaluation, next steps usually depend on the specific finding, so review the report notes carefully and act on any urgent flags right away. A standard lab report is downloadable from your account for your records. You can also track this result over time using the trends feature if repeat testing is ever needed.

How can I naturally support tissue and immune health?

While this test itself detects a genetic change that lifestyle changes can't reverse, supporting your body during any cancer workup can help you feel more resilient. Eating a balanced diet with plenty of vegetables, fruit, and lean protein, staying physically active as tolerated, getting consistent sleep, and managing stress through activities like walking or meditation can all support your overall well-being. These steps don't replace medical treatment but can complement it.

When will I get my results?

Results for this FISH test are generally ready within about 7 days after your sample is processed at the lab. FISH testing requires careful lab preparation of the tissue sample, which is why it takes longer than a routine blood test. You'll be notified as soon as your results are posted to your account.

Who should consider this test?

This test is generally considered for people who already have a soft tissue mass or tumor identified through imaging or biopsy and need further genetic clarification. It's most relevant when a care team suspects a sarcoma, particularly myxoid or round cell liposarcoma, and standard pathology hasn't given a definitive answer. It may also be used to help track how a tumor responds to treatment over time.

What symptoms might lead to this type of testing?

People are typically referred for this kind of testing after finding a lump or mass, often in the arms, legs, or torso, that doesn't go away or continues to grow. Other reasons include unexplained swelling, pain near a mass, or a tumor found incidentally on imaging done for another reason. On its own, this test isn't ordered based on symptoms — it follows an initial finding from imaging or biopsy.

What is the FUS gene rearrangement and why does it matter?

The FUS gene sits on chromosome 16 and, in a healthy cell, functions normally without disruption. In some tumors, a piece of FUS breaks off and joins with another gene, creating an abnormal fused gene that can drive cancer growth. Detecting this specific rearrangement helps confirm certain sarcoma diagnoses and can point toward the most fitting treatment approach.

What does a positive result for this rearrangement mean?

A positive result means the FISH probe detected a break in the FUS gene region, which is consistent with a translocation seen in certain sarcomas like myxoid-round cell liposarcoma. This finding is generally used alongside your other test results and tissue findings to confirm a diagnosis. It's important to discuss the full picture of your case with whoever is managing your care so the finding is interpreted in context.

What should I do if my results come back abnormal?

If your result shows a FUS gene rearrangement, share the full report with whoever is coordinating your cancer care so it can be factored into your diagnosis and treatment planning. Keep a copy of your downloadable report for any additional specialists involved in your case. If you experience new or worsening symptoms like rapid tumor growth or severe pain, seek medical care promptly.

Getting your blood test with us is easy, private & backed by the power of science.Long story short: In the test options, use the filters or search box to narrow your choices and find the test you want. If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test. Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout. If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want. When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system. Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way. You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy! If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.

How do I know which test to get?

In the test options, find the test you want. If you’re not sure which test to get, we can lend a hand in finding the right option. Just text or call us at 754-799-7833, email us at support@privatemdlabs.com, and we'll gladly help you. We've got your back and reply quickly.

When will my lab results be available?

Most test results will be available within 1–3 business days. Once they're ready, we'll send an email and text message to let you know. After your blood draw, just hang tight and don't worry – we'll keep you updated and in the loop! If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com, and we'll gladly help you.

Is it possible to make changes to my lab order if I made a mistake with the name, date of birth, or any other details?

Absolutely! We totally understand that errors can happen. No worries, we're here to help you. Just reach out to us via text at 754-799-7833 or shoot us an email at support@privatemdlabs.com. Remember to include your order number and let us know the correct information you’d like to update. Our awesome team will jump right in and make sure everything is sorted out and accurate for you. There are no changes necessary if your address is wrong on the requisition though. We don’t mail anything out. Our lab requires an address to be listed to generate an order.

Do you accept health insurance?

Only HSA & FSA is accepted. Our services are strictly self-pay and cannot be submitted to your health insurance provider except for Health Savings Accounts or Flexible Savings Accounts. This policy applies to all insurance companies, including federal health insurance programs like Medicare. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com.

Can I cancel my order?

Yes. We get it – sometimes your needs change. As long as your samples haven’t been collected yet, we’re happy to help you cancel your order. If you have any further questions, please text us at 754-799-7833 or email support@privatemdlabs.com. You can read more about our cancellation policy here.

How can I find a lab location near me?

During the ordering process, you’ll be able to select a specific lab near you, with no strings attached! You can switch it up later easily and visit any of our authorized locations as long as it’s the same lab company you selected your test for (Quest Diagnostics or Labcorp). Before you proceed with your order, feel free to browse through all our lab locations here. This will give you the peace of mind of knowing that there's a lab nearby your home, office or your favorite gym. If you have any questions, please text us at 754-799-7833 or email support@privatemdlabs.com and we'll gladly help you.

FUS FISH Test - Sarcoma & Liposarcoma Detection

Getting your blood test with us is easy, private & backed by the power of science.

Long story short:

In the test options, use the filters or search box to narrow your choices and find the test you want.
If you need a hand navigating through options, text our super friendly support team at 754-799-7833, and we'll provide tailored suggestions to help you find the ideal test.
Once your order is placed, we’ll create your doctor’s lab order remotely, without any need for you to make a trip to a doctor in person or to talk to the doctor. Expect to receive your doctor’s lab order right in your inbox. It will also be in your patient portal if you need to find it later. We’ll also include instructions regarding fasting and other requirements for your test. Your patient portal will be auto-created hassle-free during checkout.
If this is your first time ordering, you'll be prompted to create a password for instant login access to your patient portal. It's a quick way to conveniently access your orders and results whenever you want.
When you’re ready, visit one of our 4,000 locations. Just bring your ID – no printing or faxing of your lab order is needed, as your order and details will already be in the lab system.
Note that most lab locations don’t accept walk-ins, so it’s best to book an appointment in advance. Don’t worry – we’ll provide detailed instructions along the way.
You’ll get your results via email & SMS and dive into understanding your body better. Yup, that easy!

754-799-7833

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