Questions: 23. Describe the following diseases of the lymphatic system: a. Autoimmune disorders: b. Lymphoma c. Lymphangitis d. Lymphedema

23. Describe the following diseases of the lymphatic system:
a. Autoimmune disorders:
b. Lymphoma
c. Lymphangitis
d. Lymphedema
Transcript text: 23. Describe the following diseases of the lymphatic system: a. Autoimmune disorders: b. Lymphoma c. Lymphangitis d. Lymphedema
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Sure, I will describe the following diseases of the lymphatic system:

a. Autoimmune disorders: Autoimmune disorders occur when the immune system mistakenly attacks the body's own tissues. In the context of the lymphatic system, autoimmune disorders can affect lymph nodes and other lymphatic tissues. Examples include:

  • Systemic Lupus Erythematosus (SLE): A chronic autoimmune disease that can cause inflammation and damage to various body tissues, including the lymphatic system.
  • Rheumatoid Arthritis: An autoimmune disorder that primarily affects joints but can also cause lymph node enlargement and inflammation.
  • Sjögren's Syndrome: An autoimmune disease that targets the glands that produce moisture, leading to dry mouth and eyes, and can also affect lymph nodes.

b. Lymphoma: Lymphoma is a type of cancer that originates in the lymphatic system, specifically in the lymphocytes (a type of white blood cell). There are two main types of lymphoma:

  • Hodgkin Lymphoma: Characterized by the presence of Reed-Sternberg cells, it typically starts in the lymph nodes and can spread to other parts of the lymphatic system and beyond.
  • Non-Hodgkin Lymphoma: A diverse group of blood cancers that include any kind of lymphoma except Hodgkin's. It can arise in lymph nodes or other lymphatic tissues and has various subtypes with different behaviors and treatment responses.

c. Lymphangitis: Lymphangitis is an inflammation of the lymphatic vessels, usually caused by a bacterial infection. It often results from a skin infection that spreads to the lymphatic system. Symptoms include red streaks on the skin, fever, chills, and swollen lymph nodes. If left untreated, it can lead to serious complications such as sepsis.

d. Lymphedema: Lymphedema is a condition characterized by swelling due to the accumulation of lymph fluid in the tissues. It can occur when the lymphatic system is damaged or blocked. Causes include:

  • Primary Lymphedema: A rare, inherited condition that can develop at any age.
  • Secondary Lymphedema: More common, it can result from surgery, radiation therapy, infection, or injury that damages the lymphatic system. It often occurs in patients who have undergone treatment for cancer, particularly breast cancer.

In summary, autoimmune disorders involve the immune system attacking the body's own tissues, lymphoma is a type of cancer affecting lymphocytes, lymphangitis is an infection-induced inflammation of lymphatic vessels, and lymphedema is swelling caused by lymph fluid accumulation due to lymphatic system damage or blockage.

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