Classification and Incidence
Taken together, hematological malignancies account for 9.5% of new cancer diagnoses in the United States. Within this category, lymphomas are more common than leukemias.
Historically, hematological malignancies have been most commonly divided by whether the malignancy is mainly located in the blood (leukemia) or in lymph nodes (lymphomas).
However, the influential WHO Classification (published in 2001) emphasized a greater emphasis on cell lineage.
Read more about this topic: Hematological Malignancy
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