Key Facts
- Hodgkin lymphoma is defined by Reed–Sternberg cells, absent in non-Hodgkin lymphoma.
- Only 10% of cases are Hodgkin; the rest are non-Hodgkin subtypes.
- Hodgkin spreads in an orderly pattern; non-Hodgkin spreads unpredictably.
- Survival rate for early Hodgkin lymphoma is as high as 90%.
- Non-Hodgkin lymphoma has over 60 subtypes with varied prognosis.
- Both require hematologist evaluation for accurate diagnosis and treatment.
Hodgkin lymphoma (HL) and non-Hodgkin lymphoma (NHL) are both blood cancers that affect your lymphatic system, but they differ in cell types, symptoms, treatment approaches, and prognosis. The key distinction is the presence of Reed–Sternberg cells, found only in Hodgkin lymphoma.
What Is Lymphoma?
Lymphoma is a type of cancer that starts in the lymphatic system part of the immune system that includes lymph nodes, spleen, bone marrow, and other tissues. It happens when lymphocytes (a type of white blood cell) grow uncontrollably, forming tumors.
There are two main categories:
- Hodgkin Lymphoma (HL)
- Non-Hodgkin Lymphoma (NHL)
What Is Hodgkin Lymphoma?
Hodgkin lymphoma is a less common form of lymphoma, accounting for about 10% of cases worldwide. Its hallmark is the presence of Reed–Sternberg cells, large abnormal lymphocytes visible under a microscope.
Key features:
- More common in young adults (15–35 years) and older adults above 55.
- Often starts in the upper body lymph nodes (neck, chest, underarms).
- Tends to spread in an orderly pattern from one group of nodes to another.
Symptoms may include:
- Painless swelling of lymph nodes
- Night sweats
- Persistent fatigue
- Weight loss and fever
- Itching or skin rashes in some cases
What Is Non-Hodgkin Lymphoma?
Non-Hodgkin lymphoma is much more common, making up about 90% of lymphoma cases. It includes more than 60 subtypes, ranging from slow-growing (indolent) to aggressive forms.
Key features:
- Can occur at any age, though risk increases with age.
- May start in lymph nodes, but also in the stomach, intestines, or skin.
- Spreads in a non-orderly pattern, which can make it harder to track.
Symptoms may include:
- Enlarged lymph nodes in neck, armpit, or groin
- Abdominal pain or swelling
- Chest pain or breathing difficulty
- Fever, weight loss, and night sweats
- Frequent infections
Hodgkin vs. Non-Hodgkin Lymphoma: Main Differences
| Feature | Hodgkin Lymphoma | Non-Hodgkin Lymphoma |
| Key Cell | Reed–Sternberg cells present | No Reed–Sternberg cells |
| Prevalence | ~10% of cases | ~90% of cases |
| Age Group | Young adults & 55+ | Any age, often older adults |
| Spread Pattern | Orderly, predictable | Random, non-linear |
| Common Locations | Neck, chest, underarms | Lymph nodes, stomach, skin, intestines |
| Treatment | High cure rates with chemo/radiation | Treatment varies by subtype, some harder to cure |
| Prognosis | 5-year survival rate ~85–90% (early stages) | Varies widely (60–85% depending on type/stage) |
Treatment Approaches
Hodgkin Lymphoma
- Chemotherapy (ABVD regimen is common)
- Radiation therapy for localized disease
- Stem cell transplant in relapse cases
- Targeted therapy and immunotherapy in advanced cases
Non-Hodgkin Lymphoma
- Chemotherapy (e.g., CHOP regimen)
- Immunotherapy (Rituximab for B-cell NHL)
- CAR-T cell therapy for aggressive relapsed types
- Stem cell transplant for certain patients
- Radiation for localized tumors
Prognosis and Survival
- Hodgkin Lymphoma: Generally has one of the highest cure rates among cancers. Early diagnosis leads to excellent outcomes.
- Non-Hodgkin Lymphoma: Survival depends on subtype and stage. Indolent types may be manageable for years, while aggressive types need urgent treatment.
When to See a Hematologist?
If you notice persistent lymph node swelling, night sweats, or unexplained weight loss, it is essential to consult a hematologist or oncologist. Early diagnosis improves treatment success.
Patients should not ignore persistent symptoms like swollen nodes or night sweats. Many lymphomas are treatable if caught early.
