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  • subtypes
  • Presently, more than 22 different clinicopathologic subtypes of T-cell and natural killer (NK)-cell lymphomas/leukemias are recognized in the 2008 World Health Organization (WHO) Classification ( 1 ). (aacrjournals.org)
  • marrow
  • Leukemia is a type of cancer that affects the blood and bone marrow. (lls.org)
  • Leukemia begins in a cell in the bone marrow. (lls.org)
  • Once the marrow cell undergoes a leukemic change, the leukemia cells may grow and survive better than normal cells. (lls.org)
  • The rate at which leukemia progresses and how the cells replace the normal blood and marrow cells are different with each type of leukemia. (lls.org)
  • Acute Lymphoblastic Leukemia Is a cancer of the bone marrow and blood Progresses rapidly without treatment Does not have a clear cause Click here to access ALL statistics. (lls.org)
  • Chronic lymphocytic leukemia (CLL) Is a type of blood cancer that begins in the bone marrow Can progress either slowly or quickly depending on the form it takes Click here to access CLL statistics. (lls.org)
  • years
  • A Large or Giant Congenital Melanocytic Nevus (plural: Nevi) is a pigmented lesion, substantial in size, either present at birth or very shortly after birth (within 2 years). (rareshare.org)
  • The leukemias are the most common malignancies among children younger than 15 years. (wikidoc.org)