Diagnosing Lymphoma

This information is useful for children, adults, and older adults
A woman with lymphoma is getting a checkup by a doctor.

Lymphoma is a cancer that attacks the lymphatic system, which is a disease-fighting network of vessels and lymph nodes that spans the body and form part of the immune system. There are multiple types of lymphoma, including Hodgkin lymphoma and the more common non-Hodgkin lymphoma. In all cases, white blood cells (either B cells or T cells), which circulate in the blood and are found in lymph nodes across the body, become abnormal in that they grow uncontrollably.