Lymph nodes are small structures that are normally neither palpable nor noticeable under healthy conditions. They are an essential part of both the lymphatic and immune systems. These nodes function as filters, containing immune cells that fight germs such as bacteria and viruses and help prevent the spread of infection throughout the body.

Lymphoma is a type of cancer that develops in lymphocytes, a type of white blood cell found in the lymphatic system. Abnormal lymphocytes can multiply uncontrollably and accumulate in lymph nodes and other tissues, where they may form tumors.

There are two main types of lymphoma: Hodgkin lymphoma and non-Hodgkin lymphoma. Hodgkin lymphoma is named after Thomas Hodgkin, the physician who first described the disease in the nineteenth century.

Lymphoma is among the more common types of cancer worldwide and in the Kingdom of Saudi Arabia. It affects both men and women, although it occurs more frequently in males.

According to the Saudi Cancer Registry (2024), approximately 1,700 new cases of lymphoma (both Hodgkin and Non-Hodgkin lymphoma) are diagnosed annually. Non-Hodgkin lymphoma is among the most prevalent cancers in Saudi Arabia, and the disease occurs more frequently in males than females.

According to Global Cancer Observatory (2024), statistics indicate that approximately 700,000 new cases of lymphoma are diagnosed annually worldwide. Lymphoma is among the most common cancers globally, with Hodgkin lymphoma accounting for approximately 10% of cases and non-Hodgkin lymphoma accounting for about 90%.

Cancer is a multifactorial disease, and in many cases a direct cause cannot be identified. The body's immune system is naturally capable of detecting and eliminating abnormal cells as they arise. However, immune function may become impaired or weaken with aging and prolonged exposure to risk factors, increasing the likelihood of normal cells transforming into cancerous cells.

Reducing exposure to known risk factors can help lower the risk of cancer. Risk factors are conditions, behaviors, or exposures that research has associated with an increased likelihood of developing cancer. Some are modifiable, including smoking, alcohol consumption, and excess body weight. Conversely, protective factors such as regular physical activity and a healthy diet may help reduce overall cancer risk.

• Infection with Epstein-Barr virus (EBV), human immunodeficiency virus (HIV), human T-lymphotropic virus (HTLV), or Helicobacter pylori.
• A family history of lymphoma in a first-degree female relative, such as a mother, sister, or daughter.
• Autoimmune diseases.
• Use of immunosuppressive medications.
• Exposure to pesticides, chemicals, and industrial solvents.
• Smoking and the use of tobacco products.

• There are currently no scientifically established or widely recommended screening tests for the early detection of lymphoma in healthy individuals. However, healthcare providers may use ultrasound or other imaging studies to evaluate individuals who have concerning symptoms or are considered to be at increased risk.

• A painless, palpable enlargement of lymph nodes in the neck, armpit, or groin.
• Excessive night sweats.
• Unexplained weight loss.
• Sudden fatigue and exhaustion.
• Loss of appetite.

• Intensive chemotherapy.
• Radiation therapy.
• Immunotherapy.
• Targeted therapy.
• Chemotherapy combined with bone marrow transplantation.
• Chimeric Antigen Receptor (CAR) T-cell therapy.

• Most individuals with lymphoma can continue to enjoy their lives and fulfill their social, family, and religious responsibilities when they understand their condition and adopt appropriate coping strategies.
• Discussing the disease and potential treatment-related side effects with a physician can make coping with the condition easier.
• Ongoing care and regular follow-up during and after treatment contribute to reducing the risk of cancer recurrence and managing long-term treatment effects.
• Quitting smoking and avoiding exposure to secondhand smoke are strongly recommended.
• Following a healthy diet and engaging in regular physical activity support overall well-being.
• Maintaining a positive psychological outlook can contribute to improved mood and help patients overcome feelings of loneliness, anxiety, sadness, stress, and frustration.
• Accepting temporary body changes, such as hair loss, can facilitate adaptation and recovery.
• Studies suggest that physical exercise stimulates the release of endorphins, which may help reduce stress and promote mental and physical well-being.
• Following physician instructions and taking medications as prescribed can contribute to optimal treatment outcomes.

The information presented above is intended solely for general health education purposes. It is not a substitute for professional medical advice from the treating physician and should not be used for purposes other than public health education.

1. National Cancer Institute. (September 15, 2025). Lymphoma Cancer. National Cancer Institute.
2. Saudi Health Council. (2024). Saudi Cancer Registry. Saudi Health Council Electronic Portal.
3. International Agency for Research on Cancer (IARC). (2024). Global Cancer Observatory (GLOBOCAN) - Statistics Section.