Have you also been told by a doctor that you need to have a lymph node biopsy? Or is it something that a friend of yours has been scheduled for and you are curious about it? It is normal to feel a little scared and nervous when you hear this. But if we understand this properly, we can reduce that fear and nervousness. So, today we will talk simply about what a lymph node biopsy is, why it is done, how it is done, and what happens afterwards.
What is a lymph node biopsy?
Simply put, a lymph node biopsy is a test to check for any signs of disease, especially cancer, in your lymph nodes. In this test, a doctor (usually a surgeon or radiologist) removes all or a small piece of your lymph node. Then, another specialist called a pathologist examines the tissue in a laboratory.
Now you might be wondering what these lymph nodes are. These lymph nodes are small organs that are located all over our body, about the size of a pea. Their main function is to filter the lymph fluid `(Lymph)` that comes from our cells and tissues, and to catch the harmful things and germs in it. Imagine, the germs that enter our body get trapped inside these lymph nodes. Also, cancers like `(Lymphoma)` can start directly from the lymph nodes. Other types of cancer can also spread to the lymph nodes.
So, by taking this small piece of tissue and examining it, we can detect even subtle symptoms. The results of this `(Lymph Node Biopsy)` allow doctors to know exactly if a disease is present, determine its severity, and then decide on the best treatment.
When does a doctor recommend a biopsy?
There are several main reasons why your doctor may recommend a lymph node biopsy:
- To diagnose cancer and determine its stage. Doctors do this test to see if cancer is present and if it has spread beyond the original site. This information is used to plan your treatment. It also gives you an idea of what kind of results you can expect from treatment (prognosis).
- Find out what's causing a swollen ankle. It's normal for ankles to swell when we're sick. This happens when we have a fever or a cold. But sometimes, if the swelling doesn't go down and continues, and the doctor can't find the cause, then a biopsy may be needed. It could be a serious infection , or it could be an immune system disease like sarcoidosis.
When you are offered this test, your doctor will explain to you what condition they suspect and what they are testing for. So it is very important to ask any questions you may have.
What types of lymph node biopsies are there?
There are several types of `(Lymph Node Biopsy)`. Let's see what they are:
- Sentinel Node Biopsy: This is done to check whether the cancer has spread beyond the original site, to nearby lymph nodes. In this procedure, the doctor finds the lymph nodes closest to the tumor (called the sentinel lymph nodes), removes them, and checks them for cancer cells.
- Needle Biopsy: Some tumors are located under our skin, in places that are easy to reach. In such cases, this needle biopsy method is used. There are also two types of this:
- Fine-Needle Aspiration (FNA): This involves using a very fine, hollow needle to remove some fluid and cells from the lump.
- Core Needle Biopsy: This involves using a slightly larger needle than FNA to take an intact tissue sample.
- Open Biopsy: Sometimes, if the tumor is located deep inside the body and cannot be easily reached through the skin, then this open biopsy method is used. In this, the doctor makes a small cut (incision) in the skin, accesses the tumor, and removes it completely (Excisional Biopsy)) or partially (Incisional Biopsy)).
Sometimes doctors also call these types of ``biopsy'' based on where the lumps are. The main locations are:
- Axillary lymph node biopsy.
- Cervical lymph node biopsy.
- Inguinal lymph node biopsy.
What should I expect before the test?
Your doctor will ask you a few health-related questions to make sure it's safe for you to have this test. They'll ask about:
- The medications you take: This includes prescription medications, over-the-counter medications, herbs, vitamins, and nutritional supplements. You should tell your doctor about all of these.
- Your medical history: They will want to know if you have any bleeding disorders (i.e., bleeding more than normal), allergies to anesthesia or latex, and whether you are pregnant or could be pregnant.
At the same time, the doctor will give you these instructions:
- Which medications should be stopped in the days before the test, and which should be continued.
- Do you need to ``fast`` to stop eating and drinking for a certain period of time before the test?
- Do you need someone to take you home and take care of you? Because, depending on the biopsy, it may not be safe to drive or be alone for the first 24 hours. Even if you are not prohibited from driving, it is a good idea to have someone with you to comfort you while you are leaving the hospital.
Your doctor will also explain to you what will happen on the day of the test. Don't hesitate to ask any questions you have at this time.
What happens during a lymph node biopsy?
You will be made to lie down on an examination table. No matter what type of biopsy is being done, the doctor will give you anesthesia so that you don't feel any pain. If the lump is close to the skin, you will only have local anesthesia, which numbs that area. But if the lump is deep inside your body, you will be given general anesthesia, which puts you completely to sleep.
After you are asleep or the area is completely numb, the doctor will do the following:
- The lump that needs to be examined is found. The doctor may use an ultrasound, a computed tomography (CT) scan, or a mammogram to find the exact location. Sometimes a special dye or tracer may be injected. These will flow into the lumps and make them more visible.
- The tumor is removed in whole or in part. They try to damage as little tissue as possible and reduce or prevent scarring.
- The incision will be stitched and a bandage will be applied. You may be given absorbable stitches, or you may be asked to come back in a few days to have the stitches removed.
How painful is a lymph node biopsy?
When the doctor injects the anesthetic, it feels like a small needle prick, followed by a slight burning sensation. However, you will not feel any pain during the procedure. You may feel some discomfort afterward. However, you can control the discomfort by taking painkillers (available from pharmacies with a doctor's prescription) until the wound heals.
The doctor will advise you on what painkillers you can take.
How long does a lymph node biopsy take?
A simple needle biopsy can take as little as 10 to 30 minutes. An open biopsy can take about 45 minutes. This largely depends on how easily you can access your mole.
What happens after a lymph node biopsy?
A lymph node biopsy is usually an outpatient procedure, meaning you can go home the same day.
Before you go home, your doctor will check your basic health indicators (temperature, pulse rate, etc.) to make sure it's safe for you to go home. They will also give you instructions on how to care for the biopsy site and how to take care of yourself.
They will advise you on things like:
- How the wound should normally heal. For example, it is normal to have some bleeding, swelling, bruising, and discomfort for the first few days after a lymph node biopsy. However, if the bleeding increases, the pain increases, or the biopsy site becomes red and shows signs of infection, it is not normal.
- How to keep the wound clean and take care of it. To reduce the risk of infection, you may be asked to avoid bathing, using hot tubs, and perhaps even taking a bath for a few days.
- They will tell you how to take care of yourself, when to start taking your medication again, and how to handle your work without straining your body during recovery. They may also advise you to avoid lifting anything heavier than a certain weight.
Before you go home, make sure you have a clear understanding of what to do next. It's also important to know when to contact a doctor if the wound isn't healing properly.
What are the risks of a lymph node biopsy?
A lymph node biopsy is generally a safe procedure. However, no medical procedure is completely risk-free. The following are some of the rare complications that can occur:
- Infection: This is not common, but if it does occur, your doctor may prescribe antibiotics to treat the infection.
- Increased bleeding from the biopsy site: Your risk of bleeding depends on the type of biopsy and the amount of tissue removed by the doctor. They will tell you how much bleeding to expect.
- Numbness at the biopsy site: This can happen if a nerve is damaged during the biopsy. This numbness usually goes away within a month or two.
- Swelling near the biopsy site (Lymphedema) : This can happen if there is a problem with the flow of lymph fluid after the removal of the tumor. This is rare because only a few tumors are removed during a biopsy.
- Axillary Web Syndrome (`(Axillary Web Syndrome)`) or ``(Cording)`` : After removing a mole from your armpit, you may notice a cord-like appearance under the skin on the inside of your arm. This ``(Cording)`` condition is very rare after a ``(Biopsy)``. It also goes away with time.
What are the results? What do those results mean?
The results of a `(Lymph Node Biopsy)` show whether you have a certain disease (`(Positive)` - meaning you have the disease) or not (`(Negative)` - meaning you do not have the disease).
For example, if you get a ``positive'' result, it could mean that you have cancer cells in your testicles. The doctor will then do further tests to see if the cancer started in your testicles or if it has spread from somewhere else in your body.
Your doctor will advise you on what to do next based on your results.
When will I know the results?
You may get results the same day, or it may take a few weeks.
In cases where cancer is suspected, a lymph node biopsy is usually performed on the same day. After the biopsy, the doctor may ask you to wait a while so that the sample can be examined. If your results are positive, meaning you have cancer, the doctor may remove more tissue that day to see how far the cancer has spread. Then you won't have to come back for another visit.
Ask your doctor when to expect the results and how you will receive them (some doctors call, some post them online through a confidential patient portal).
When should I contact the doctor?
If you notice any of these signs of infection, contact your doctor immediately:
- Fever and chills.
- Swelling, warmth, redness, or unusual fluid drainage at the biopsy site.
Most people recover without any problems, but if you have any concerns, always call your doctor.
Finally, a Take-Home Message
It's normal to feel confused, anxious, and perhaps overwhelmed when you find out you need a lymph node biopsy. It's also natural to want to get this done as quickly as possible and know the answer.
While you're waiting for your test (or the results), keep this in mind: While a biopsy can detect serious conditions, it can also provide significant relief. For example, your results may show that your cancer has not spread. They may also give you an idea of what the best cancer treatments are to control the disease. As distressing as this experience may be, remember that the information you get from a lymph node biopsy is vital to your future health and well-being.
` Lymph node biopsy, cancer, biopsy, lymph node swelling, lymph nodes, sentinel node biopsy, needle biopsy, open biopsy
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