Leukemia

Definition

Leukemia is a type of cancer that originates in blood-forming tissues, leading to the abnormal production of white blood cells. It disrupts the body's ability to fight infection and impairs normal blood cell function.

5 Must Know Facts For Your Next Test

1. Leukemia is classified into four main types: acute lymphoblastic leukemia (ALL), acute myeloid leukemia (AML), chronic lymphocytic leukemia (CLL), and chronic myeloid leukemia (CML).
2. The exact cause of leukemia is unknown, but it involves genetic mutations that affect blood cell production.
3. Symptoms of leukemia include fatigue, frequent infections, easy bruising or bleeding, and swollen lymph nodes.
4. Treatment options for leukemia include chemotherapy, radiation therapy, targeted therapy, and stem cell transplant.
5. Leukemia can be diagnosed through blood tests, bone marrow biopsy, and genetic testing.

Review Questions

• What are the four main types of leukemia?
• What are common symptoms associated with leukemia?
• How is leukemia typically diagnosed in patients?

Related terms

Lymphoma: A group of blood cancers that develop from lymphocytes.

Myeloma: Cancer arising from plasma cells in the bone marrow.

Immunotherapy: A treatment method that uses certain parts of a person’s immune system to fight diseases such as cancer.