September 15, World Lymphoma Awareness Day: Understanding Lymphoma, Symptoms and Treatment

⚠️ Why Does It Matter?

Every year, 15 Septemberis observed worldwide as World Lymphoma Awareness Day . Lymphomais a common group of blood cancers, affecting approximately 1 million new patients worldwide each year, with around 1,000 new diagnoses each day. Yet public awareness of lymph node function and lymphoma symptoms remains low. Early diagnosis and timely treatment save lives.

🧬 What Is Lymphoma?

Lymphomais a group of cancers arising in lymph nodes or other lymphoid tissues. There are two main categories:

• Classical Hodgkin Lymphoma (cHL): Characterized by Hodgkin/Reed–Sternberg cells, usually CD30 positive, CD45/CD3 negative in immunophenotype.
• Non-Hodgkin Lymphoma (NHL): B-cell, T-cell or NK-cell subtypes, with biology, natural history and treatment differing from cHL.

🔎 The Most Common Symptoms

• Painless Lymph Node Enlargement (Lymphadenopathy): In the neck, armpits, groin or supraclavicular area; in cHL, a mediastinal mass is common.
• "B" Symptoms: Fever above 38 °C, drenching night sweats, ≥10% unintentional weight loss over 6 months. These occur in around 40% of cHL patients and are more common in aggressive NHL subtypes.
• Itching (Pruritus): In cHL, 10–15% may experience widespread, severe itching.
• Extranodal Involvement: Organs outside lymph nodes may be affected: gastrointestinal tract, skin, testes, bone or CNS.

🧪 How Is It Diagnosed?

• Gold Standard: Sampling a suspicious lymph node through excisional/incisional biopsy or multiple core needle biopsies. Fine needle aspiration is usually insufficient for subtype classification.
• Pathology & Immunophenotyping: Morphology together with CD markers and molecular/cytogenetic analysis.
• Staging: PET-CT/CT and blood tests guide treatment and prognosis.

🩺 General Treatment Approaches and Decision Pathway

Lymphoma treatment is planned according to lymphoma subtype (Hodgkin/Non-Hodgkin), disease stage, prognostic factors, age and comorbidities. The general approach follows these steps:

1. Diagnosis and Staging: Pathology, immunophenotyping and PET-CT staging clarify disease extent.
2. Risk Classification: Assessment using the International Prognostic Index (IPI), Ann Arbor staging or similar systems.
3. First-Line Treatment Selection:
   • Classical Hodgkin Lymphoma: Standard treatment is usually ABVD (Adriamycin, Bleomycin, Vinblastine, Dacarbazine); for advanced disease, escalated BEACOPP may be considered.
   • Aggressive B-Cell NHL: R-CHOP (Rituximab, Cyclophosphamide, Doxorubicin, Vincristine, Prednisone) is standard.
   • Indolent NHL: Observation or rituximab-based treatment; watch-and-wait for low-volume disease.
4. Response Assessment: PET-CT assesses early and end-of-treatment response, guiding continuation, intensification or treatment change.
5. Consolidation and Autologous Stem Cell Transplantation: Autologous transplantation may be considered for refractory or high-risk disease.
6. Immunotherapy and Targeted Treatments:
   • Anti-CD20 antibodies (Rituximab, Obinutuzumab) are standard in B-cell NHL.
   • Checkpoint inhibitors (Nivolumab, Pembrolizumab), particularly in relapsed/refractory Hodgkin lymphoma.
   • CAR-T Cell Therapy: May be used in aggressive, treatment-resistant B-cell lymphomas.
7. Supportive Care: Infection prophylaxis, hematopoietic growth factors, nutritional and psychosocial support.
8. Long-Term Follow-Up: Regular checks for secondary malignancies, cardiotoxicity and other late effects.

📣 Why Does Awareness Save Lives?

Public surveys indicate low awareness of lymph node function and lymphoma symptoms. "Know Your Nodes" and similar campaigns encourage early presentation and rapid diagnosis. When lymphoma is detected early, cure rates and survival improve substantially.

• If you notice painless, persistent swelling , consult a physician promptly.
• B symptoms (fever, sweats, weight loss) also warrant assessment.

✅ Quick Checklist: Make a Note

• Have you had, for 2–4 weeks, painless lymph node swelling ?
• Over the last 6 months, ≥10% weight loss ?
• Fever above 38 °C or drenching night sweats ?
• Unexplained fatigue or itching as well?

📊 Lymphoma Survival Rates (Approximate, 5-Year)