Hematologic malignancies are cancers that begin in blood-forming tissue, such as the bone marrow, or in the cells of the immune system. There are three main types of hematologic malignancies: leukemia, lymphoma and multiple myeloma.
- Lymphoma is a cancer that starts in the lymphatic system, which is an important part of the immune system.
- Multiple myeloma is a cancer that develops in the bone marrow and affects plasma cells.
- Leukemia is a cancer that starts in the bone marrow or blood.