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Nodular lymphocyte-predominant Hodgkin lymphoma is an uncommon type of Hodgkin lymphoma – a type of cancer that starts in the lymphatic system. The lymphatic system is part of the immune system. It is a network of glands (lymph nodes) and tubes that carry a fluid called lymph around the body.
Lymphomas develop when white blood cells called lymphocytes become abnormal. The lymphocytes start to grow out of control. They collect in large numbers in lymph nodes and make them swell (enlarge).
About 1 in 20 Hodgkin lymphomas diagnosed (5%) are NLPHL.
It is called ‘nodular lymphocyte-predominant’ because it has particular cells that can be seen under a microscope. These are called LP cells (for ‘lymphocyte-predominant’), but doctors sometimes call them popcorn cells because they look a bit like pieces of popcorn.
NLPHL is different to other types of Hodgkin lymphoma. It tends to grow more slowly and to be diagnosed earlier, when it is only growing in one or two groups of lymph nodes. The lymph nodes it grows in tend to be in places that can be easily felt, rather than deep inside the body. For these reasons, treatment is usually very successful and many people are cured.
Who gets NLPHL and why?
The two main groups that get NLPHL are children and people in their 30s and 40s. Three out of four cases are diagnosed in males. It is more common in children under 10 than in 10–18 year olds.
We don’t know why some people get NLPHL. You can’t catch it, or pass it on to anyone else. There are no particular risk factors that we know of, so it isn’t down to anything you’ve done or not done.
Lymphomas are not normally inherited. But unlike other types of Hodgkin lymphoma, brothers, sisters and parents of someone with NLPHL have a very slightly higher risk of getting it themselves – but it is still very unlikely.
What are the symptoms of NLPHL?
The only symptom that most people have with NLPHL is enlarged (swollen) lymph nodes. These tend to grow quite slowly and are not usually painful. In most cases, the enlarged lymph nodes are only in one area of the body.
Some people with lymphoma have other symptoms such as weight loss, sweating at night and a high temperature (fever) that comes and goes. These are called B symptoms. They can happen with NLPHL, but only in a small number of cases – about 1 in 6 at most.
Tests for NLPHL
Like all lymphomas, the best way to get a diagnosis is for your doctor to take a sample of cells from an enlarged lymph node and examine them under a microscope. This means having a small operation, called a biopsy. Depending on where the affected lymph nodes are, you either have this done under a local or general anaesthetic.
Special tests will also be done on the cells to look for particular proteins that are commonly found on the surface of lymphoma cells. It may take a while to have all the necessary tests done on your biopsy. The sample will be sent to a specialised laboratory where doctors who are experienced in diagnosing lymphoma can examine it.
Once you have been diagnosed, you will need other tests to find out which areas of your body the lymphoma is growing in. You will have blood tests and scans. Doctors take blood tests to:
- Check your blood cell counts and make sure you’re not anaemic.
- Make sure your kidneys and liver are working well.
- Rule out infections that could flare up when you have treatment, such as hepatitis.
You are most likely to have a CT scan. This is to look for any signs of lymphoma in internal lymph nodes and body organs such as your liver and spleen. Or you may have an MRI scan. This uses magnetism instead of X-rays and may be used in children because it does not involve any radiation.
PET scans are sometimes used to diagnose lymphoma. They are useful because they can help tell the difference between active lymphoma and scar tissue. So they can help doctors to say whether enlarged lymph nodes deep in the body contain lymphoma cells without needing to remove them.
You usually have all these tests done as an outpatient. It will take a few weeks to get all the results back. Understandably, this can be a worrying time, but it is important for your doctor to gather all of this information in order to plan the best treatment for you.
What are the stages of NLPHL?
Once your doctor has all your test results, they will be able to tell you the ‘stage’ of your lymphoma. This means how far it has grown and spread. Staging is important because it helps your doctor to choose the right treatment for you.
There are four stages. Doctors use Roman numerals for these:
- Stage I means there is lymphoma in only one group of lymph nodes in your body.
- Stage II means there is lymphoma in more than one group of lymph nodes and these are all on the same side of your diaphragm – the sheet of muscle under your ribs.
- Stage III means there is lymphoma in more than one group of lymph nodes and they are on both sides of the diaphragm.
- Stage IV means there is lymphoma in body organs and not just in lymph nodes or your spleen.
About 1 in 10 people diagnosed (10%) also have a ‘B’ after their stage – IB, IIB and so on. This means they have the extra symptoms known as B symptoms – fevers, night sweats and weight loss.
Around 3 out of 4 cases of NLPHL (75%) are stage I or II when they are diagnosed. This is called early stage disease.
Stage III and IV NLPHL is called advanced disease. About 1 in 4 people (25%) have advanced NLPHL when they are diagnosed. Try not to worry if you are one of these people. The main difference is that you will have treatment to your whole body rather than treatment to one area only. Advanced NLPHL still responds very well to treatment.
The outlook if you have NLPHL
The outlook for NLPHL is generally very good. This is partly because it tends to be at an earlier stage when it is diagnosed and also because it grows very slowly. It tends to respond very well to treatmentand most people are either cured or have a long time with no sign of the disease (known as a remission). Although NLPHL can come back (relapse), treatment is often successful and patients can be cured or have another long remission.
It is hard to give exact figures for cure rates – there is less data to go on than for other types of cancer. Statistics are also very general. They apply to a group of people and not any one person in particular.
The best person to talk to about the likely outcome of your treatment is your own lymphoma specialist. While they won’t be able to give you any guarantees ahead of time, they will have access to all your test results and treatment plan so will be able to give you a more informed opinion.
How is NLPHL treated?
Like other types of lymphoma, the treatment you have depends on:
- How far the disease has grown – the stage of your disease.
- The size of your lymph nodes.
- Whether you have B symptoms – weight loss, night sweats and fevers.
- Your age, fitness and general health.
- Your feelings about treatment and issues that may be important to you in the future, such as having children.
Your doctor will also think about the long-term effects of any treatment you have. This is important because treatment for NLPHL is very successful so most patients live for many years, even if the lymphoma comes back.
Through research, treatment for many people with NLPHL has become less intensive than it used to be. Doctors and researchers continue to try and find treatments that have as few side effects as possible, particularly long-term side effects. These are rare, but for a small number of people, they can cause more health problems than the lymphoma itself, especially when the lymphoma is very slow-growing.
Early stage disease without B symptoms
If you have early stage NLPHL you are most likely to have one of the following:
- Surgery to remove your lymph nodes.
- Surgery followed by radiotherapy.
It is most usual to have the all the lymph nodes containing lymphoma removed and then to have radiotherapy to the area. The type of surgery, time you spend in hospital and time it takes to recover from your surgery will depend on where in the body the lymph nodes are and how many you need to have taken out.
There has been some research looking into having only surgery and then watching closely for any signs that the lymphoma has come back. This is called ‘watch and wait’. It means that you avoid the side effects of radiotherapy.
You can only have ‘watch and wait’ if there are no signs of lymphoma after your surgery. There is a chance that the lymphoma will come back in the future (relapse), but then you can have more treatment and this is nearly always successful. Some research has been done to show that there is no difference in survival rates in children who had watch and wait compared to those who had radiotherapy after their surgery.
You usually have radiotherapy over three to four weeks. You have a small dose daily, from Monday to Friday each week. Having treatment is similar to having an X-ray. It doesn’t hurt and only takes a few minutes.
Early stage disease with B symptoms
If you have early stage NLPHL with B symptoms (fevers, night sweats and weight loss), you may need more intensive treatment.
Doctors generally recommend that you have treatment with a combination of chemotherapy drugs. This is the same as the treatment they give for stage III and IV NLPHL, which is outlined below.
Advanced stage disease
If you have advanced-stage (stage III or IV) NLPHL but are well, you may have ‘watch and wait’.
If you have symptoms, you are most likely to have treatment with a combination of chemotherapy drugs
What are the treatment side effects?
All medical treatment has potential side effects. How many you have, which ones and how serious they are varies a lot from person to person. It isn’t possible to tell beforehand exactly how treatment will affect you. The side effects of cancer treatment are mostly temporary and will gradually disappear after your course of treatment is over.
If you have side effects from your treatment, do tell your doctor or specialist nurse. There are medicines they can give you to help with sickness, diarrhoea and other side effects. And they will almost certainly be able to offer advice to help you cope.
You may feel more and more tired as your treatment course goes on. The skin in the treatment area may become a bit red, similar to mild sunburn. Other side effects will depend on which part of your body is being treated. Treatment to your neck may cause a sore throat. Treatment to the stomach area may make you feel sick. Your doctor, specialist nurse or radiographer will explain all the possible side effects before you start treatment.
Chemotherapy and immunotherapy
The side effects you have will depend on:
- The specific drugs you have.
- How you tend to react to drugs generally.
- How many times you’ve had the drugs before.
- Other drugs you are having.
- Your general health.
The most common side effects are:
- An increased risk of picking up an infection.
- Feeling or being sick.
- Tiredness (fatigue).
- Hair loss or thinning.
- Nerve problems (peripheral neuropathy), causing numbness and tingling in your fingers and toes, or abdominal cramps and constipation.
There are quite a few other possible side effects of this treatment and your doctor or chemotherapy nurse will give you written information about them before you start treatment. You won’t have every side effect, but you will almost certainly have some.
Everyone’s experience is different.
Late effects of treatment
This means side effects that crop up months or years after you’ve finished your treatment. Fewer people get long-term side effects from NPLHL treatment these days. The treatment has been streamlined over the past few years. As treatment for NPLHL is so successful, doctors have concentrated research on trying to cut down the risk of other medical problems caused by treatment years later. The main potential long-term problems are:
- Heart problems.
- Secondary cancers.
Some chemotherapy drugs and radiotherapy to the area between your hipbones (the pelvis) can cause problems getting pregnant or fathering a child later on. Most people having treatment for NLPHL will not be at risk of infertility. If you haven’t yet had a family, your specialist will try to choose treatments that won’t harm your fertility. If this isn’t possible, your doctor will talk to you before you start treatment about sperm banking if you’re male, or embryo freezing if you’re female. If embryo freezing isn’t possible, you may be able to have eggs frozen, but this is still experimental at the moment.
Some chemotherapy drugs and radiotherapy to the centre of the chest may increase your risk of heart problems in the future. Your doctor will try and reduce your treatment doses as much as possible to minimise the risk. But you may need to have regular heart checks-ups. You can help yourself by not smoking, keeping to a healthy weight and taking regular exercise.
Your risk of getting another type of cancer in the future may be higher after treatment for NLPHL, although the risk is much lower than it used to be. Radiotherapy is more targeted these days and so normal body tissues receive a lower dose of radiation. This helps to reduce the risk. Your doctor will look for any signs of another cancer during your check-ups for many years after your treatment.
Follow-up after treatment
You will have regular check-ups with your specialist after you finish your treatment. At first, these will be every three months or so. But if all is well, they will gradually become less frequent.
At your appointments, your doctor will examine you and ask if anything is troubling you. You may have occasional tests or scans, but generally these are not necessary if you don’t have any symptoms.
Many people find check-ups quite worrying. You may be getting on with life and putting your illness behind you. Having to go back to the hospital can bring back the upset of being diagnosed and treated. But after you’ve been to your appointment, you might feel relieved that your doctor has had an opportunity to make sure all is well.
What happens if NLPHL comes back?
Unfortunately, NLPHL can sometimes come back (relapse). This may be many years after you were first treated and is one reason why it is so important to keep your follow-up appointments. Fortunately NLPHL usually responds just as well to treatment as it did the first time round and many people will be cured.
NLPHL usually comes back in the same place and rarely becomes more widespread. Your doctor will want to take another biopsy before deciding on treatment.
It is important to check the lymphoma type again because, in very rare cases, NLPHL can come back as a type of fast growing non-Hodgkin lymphoma. Doctors call this ‘transformation’. In one study of 95 patients, NLPHL transformed in around 1 in 6 people. In another study, it transformed in around 1 in 12 people.
If your NLPHL comes back, you may have:
- Chemotherapy – usually with different drugs if you had chemotherapy before.
- Rituximab, either on its own or with chemotherapy.
- High dose chemotherapy with a stem cell transplant – you will only usually have this if your NLPHL has transformed into a fast-growing type of lymphoma.
Your doctor will decide on your treatment by taking into account:
- The treatment you had before and how well you coped with it.
- How long it was before your NLPHL came back.
- The result of your biopsy and tests (the type and stage of the lymphoma that has come back).
- Your age, fitness and general health.
You are bound to be upset that your lymphoma has come back. But do remember that it can often be treated successfully.
Newer treatments for NLPHL
NLPHL treatment is often very successful. Doctors continue to try and find treatments that can still cure the lymphoma but cause fewer side effects, particularly long-term side effects.
Information has been sourced from lymphomas.org.uk
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