It's normal to feel a little scared when we see changes in our bodies, isn't it? Especially if we see small lumps on our neck, armpits, or groin, we think, 'What is this?' Today we're going to talk about a rare condition that can cause such lumps, but not many people have heard of it. This is called Rosai-Dorfman Disease.
Do you know what Ross-Dorffman disease (RDD) is?
Simply put, our bodies have a type of white blood cell called histiocytes . These are like the police officers in our bodies, fighting off disease-causing germs, and they are an important part of our immune system. However, when these histiocytes grow too much, it is called Ross-Dorffmann disease (RDD). This is not actually cancer (benign) , meaning it is not a dangerous disease that spreads from one part of the body to another. However, when these cells accumulate in excess, we can experience discomfort and symptoms.
Most of the time, these excess histiocytes accumulate in the lymph nodes in our neck. Then they swell like lumps in the neck. Doctors sometimes call this swelling of the nodes `(lymphadenopathy).` But it can affect not only the neck, but also the nodes in other parts of the body. Sometimes, in addition to the nodes, these cells can also accumulate in other parts of the body (extranodal sites).
This disease is also called `sinus histiocytosis with massive lymphadenopathy`. This is a rare disease that belongs to the group `non-Langerhans cell histiocytosis`.
What are the main types of Ross-Dorffmann disease (RDD)?
This disease does not affect everyone the same. Some people have swelling in one place, while others may have swelling in several places. Also, these histiocytes can accumulate not only in the lumps but also in other parts of the body. This is how it is classified.
- Classic (Nodal) Ross-Dorffmann Disease (Classic/Nodal RDD): This is the most common type. It mainly involves swelling of the nodes in the neck. However, symptoms can vary depending on how many nodes are affected.
- Extranodal RDD: In this type, these histiocytes accumulate in tissues other than the lymph nodes. The skin is most commonly affected. This is called cutaneous RDD (CRDD) . In addition, the condition can affect our sinuses, eyes and eyelids, bones, and the central nervous system (CNS) – that is, the brain and spinal cord. Sometimes the respiratory system and gastrointestinal system can also be affected.
Approximately 40% of people with RDD may have these histiocyte cells collected in other parts of the body, in addition to the warts, as you mentioned.
Who is most likely to get this disease?
Ross-Dorffmann disease mainly affects children, adolescents, and young adults . It is usually diagnosed in people in their 20s. However, people in their 70s have also been reported to have the disease.
RDD, which affects the testicles, is more common in men of African descent. But the previously mentioned skin condition ``CRDD`` is more common in women of Asian descent. ``CRDD`` is most common in people in their 20s, 30s, and 40s.
How rare is Ross-Dorfman disease?
This is a very rare disease . It affects about one in two hundred thousand people. For example, in the United States, about 100 new cases are reported each year. That means that in Sri Lanka, it is even less.
What are the symptoms of Rose-Dorfman disease (RDD)?
The symptoms you experience will depend on where in your body the excess histiocytes accumulate. If only the lymph nodes in your neck are affected, your symptoms may be mild or even nonexistent. However, if these cells accumulate and interfere with the function of an organ, your symptoms may be more severe.
Classic (nodal) symptoms
Histiocytes often accumulate in the neck tissues. Therefore, the most common symptom is the appearance of painless, swollen lumps on both sides of the neck . You may remember how sometimes you get a small lump in your neck when you have a cold or flu, right? That's right, but it may not be painful. However, depending on where the affected tissue is, the swelling can also be in other areas.
The main areas of inflammation that can occur due to the increase in histiocytes are:
- Your neck
- Groin area
- Armpits
- The middle of the chest (mediastinum)
You may not experience any symptoms other than swelling, or you may experience symptoms like:
- Fever
- Pale skin
- Extreme fatigue
- Night sweats
- Runny nose
- Unexplained weight loss
Extranodal symptoms
Rose-Dorffmann disease (`CRDD`) can affect the skin and can appear anywhere on the body. These lumps, which are formed by a collection of histiocyte cells, usually grow slowly. Symptoms that can be seen on the skin include:
- Flat or raised bumps
- Pus-filled or solid lumps
- Yellow, purple, red, or brown bumps
- It may be spread all over the skin or limited to one area.
When these excess histiocytes affect a particular organ or body system, various symptoms can occur. For example, if RDD affects the eyes, it can cause double vision. If it affects the central nervous system, it can cause seizures. If it affects the lungs, it can cause a persistent cough. Similarly, the symptoms vary depending on the area affected.
What causes Ross-Dorffman disease (RDD)?
Scientists still don't know the exact cause of this disease. Since RDD affects each person differently, there could be several causes. For example, recent research suggests that the skin condition ``CRDD`` is caused by something other than the same things that cause regular RDD.
Researchers have recently discovered that certain gene mutations are found in other types of RDD besides CRDD. These mutations can cause cells to grow uncontrollably.
Many people with RDD have this condition along with other medical conditions. So, there may be a link between those conditions and RDD. More research is needed on this.
RDD has been found to be associated with the following conditions:
- Viral infections: Examples include herpes, Epstein-Barr virus, cytomegalovirus, and HIV infection.
- Cancer: Hodgkin lymphoma, non-Hodgkin lymphoma, and skin cancers such as cutaneous clear-cell sarcoma. (But remember, RDD is not cancer.)
- Autoimmune conditions: Lupus, Juvenile Idiopathic Arthritis, Autoimmune Hemolytic Anemia.
How is Ross-Dorffman disease (RDD) diagnosed?
Your doctor will first do a physical exam and ask about your symptoms. They will look for signs of RDD, such as swollen glands and skin lumps. They will also ask about your medical history to see if you have or have had any conditions that are associated with RDD.
In addition, the doctor may also perform these tests:
- Imaging procedures: Depending on the type of tissue suspected of containing histiocytes, the doctor may order an X-ray, ultrasound, MRI, CT, PET, PET/CT, or bone scan. These can be used to see what's inside the body.
- Blood tests: Several blood tests, such as a complete blood count (CBC) and a comprehensive metabolic panel, can be done to see what changes are occurring in the body.
- Biopsy: This is a very important test . This involves taking a small sample of the affected tissue (e.g., a swollen lump) and examining the cells under a microscope to see if they have RDD symptoms. This biopsy can also determine if another disease is causing the abnormal cell growth.
How is Ross-Dorffmann disease (RDD) treated?
Sometimes, RDD can go into spontaneous remission without any treatment. This means that the disease will get better on its own. However, the time it takes is difficult to predict. It may take months or even years to get better. However, in some cases, it may not go away on its own, or it may come back. If left untreated, the disease may get worse.
The treatment you receive will depend on how RDD has affected you.
- Observation: If you don't have symptoms that are having a major impact on your life, your doctor may decide to monitor your condition. This is similar to a "watchful waiting" approach.
- Surgery: The lumps can be removed surgically. If you have `CRDD` (cutaneous RDD), or if the lumps are blocking your airway or affecting your spinal cord, surgery may be performed.
- Radiation therapy: If surgery cannot remove the histiocytes, radiation therapy may be given. This involves using a machine to direct targeted radiation beams at the cells, destroying them.
- Chemotherapy: If the disease is severe, or if other treatments, such as surgery, have not reduced symptoms, chemotherapy may be considered. This involves the use of drugs that kill fast-growing cells, such as cancer cells.
- Corticosteroids: Corticosteroids, such as prednisone, can reduce the swelling of the joints and relieve symptoms. These are a type of medication that reduces inflammation.
- Immunotherapy: These treatments help your own immune system find and destroy excess histiocyte cells more effectively.
What is the future for someone with Ross-Dorffman disease (RDD)?
Your prognosis depends on several factors. The number of cells affected, where in your body the excess histiocytes are, and how well you respond to treatment. Most of the time, RDD resolves on its own. However, in some cases, treatment is needed, or serious complications can occur.
Generally speaking, the fewer the nodules that are affected, the better the outcome . If there is extranodal RDD outside the nodules, affecting the skin, chest, or upper respiratory tract, the outcome is more likely to be good. However, if the histiocytes are present in the lower respiratory tract, kidneys, or liver, the situation may be somewhat worse.
What questions should I ask my doctor?
Don't forget to talk to your doctor about these things, as it's very important that you have a good understanding of your condition:
- "Doctor, what parts of my body exactly are affected by my RDD condition?"
- "Will I need to have any more imaging tests (like scans) or blood tests?"
- "Do I need treatment, or is it possible that my RDD condition will resolve on its own?"
- "How worried should I be about this RDD situation?"
- "What is the best treatment the doctor recommends for me?"
- "What side effects can I expect after treatment?"
- "What are the chances that my RDD condition will recur after treatment?"
- "How often do I need to come for check-ups to monitor my condition?"
Is Ross-Dorffman disease (RDD) a cancer?
No. This is a question that many people ask. Rose-Dorffman disease is not a cancer (benign) . That is, it does not spread from one part of the body to another like cancer (malignancy). However, the lumps that form due to RDD can affect organs, interfere with their function, and cause complications. Your doctor is the best person to know how your RDD condition is affecting your body and whether you should be concerned about it.
Who discovered Ross-Dorffman disease (RDD)?
It's good to know this too. In 1965, a scientist named Pierre Paul Louis Lucien Destombes discovered RDD symptoms in four patients. Then, in 1969, two scientists named Juan Rosai and Ronald Dorfman studied another group of patients with similar symptoms. The disease is now commonly known as Rosai-Dorfman disease, combining their names. Rarely, it is also called Rosai-Dorfman-Destombes disease, in honor of all three scientists.
Finally, things to remember (Take-Home Message)
Ross-Dorffmann disease (RDD) can be a challenging diagnosis because it is so rare and affects each person differently . There is no single treatment guideline for RDD. That's why it's important to talk openly with your doctor, understand your diagnosis, and be aware of your treatment options.
You may have mild RDD that will resolve on its own. Or, you may need a combination of treatments. Ask your doctor how your treatment plan and expected results will be tailored to your condition.
Remember, you are not alone . When dealing with such a rare condition, it is very important to follow medical advice and stay mentally strong. If you have any questions or doubts, discuss them with your doctor. Don't be afraid, because awareness is the best weapon to fight against such things.
` Rosai-Dorfman Disease, RDD, histiocytes, lymphadenopathy, neck lumps, skin diseases, CRDD, rare diseases, immune system
💬 අදහස් (0)
තවමත් කිසිදු අදහසක් පළ කර නොමැත. ඔබේ අදහස පළමු වරට මෙහි එක් කරන්න.
ඔබේ අදහස එක් කරන්න