Leukemia

You are here: 

Rare lymphocytic leukemias

The World Health Organization (WHO) uses the criteria below to classify a cancer that starts in lymphocytes as a lymphoma, a lymphocytic leukemia or a leukemia/lymphoma. They differ in where the abnormal lymphocytes are found.

  • If the abnormal lymphocytes are found mainly in the blood or bone marrow, it is considered leukemia.
  • If tumours develop in the lymph nodes or other organs, it is considered a lymphoma.
  • If the disease is found in the blood or bone marrow and as a tumour, it is considered a leukemia/lymphoma.

Find out more about the following rare types of cancer that start from lymphocytes:

Stories

A teenaged girl sitting on her bed I was in total shock when I heard the diagnosis of cancer. Cancer to me was an adult’s disease. Being a 13-year-old teenager, it certainly wasn’t even on my radar.

Read Sabrina's story

How can you stop cancer before it starts?

It's My Life! icon

Discover how 16 factors affect your cancer risk and how you can take action with our interactive tool – It’s My Life! Presented in partnership with Desjardins.

Learn more