Myelodysplastic/myeloproliferative neoplasm, unclassifiable, is a disease that has features of both myelodysplastic and myeloproliferative diseases but is not chronic myelomonocytic leukemia, juvenile myelomonocytic leukemia, or atypical chronic myelogenous leukemia.
In myelodysplastic /myeloproliferative neoplasm, unclassifiable (MDS/MPD-UC), the body tells too many bloodstem cells to become red blood cells, white blood cells, or platelets. Some of these blood stem cells never become mature blood cells. These immature blood cells are called blasts. Over time, the abnormal blood cells and blasts in the bone marrow crowd out the healthy red blood cells, white blood cells, and platelets.
For more information from the National Cancer Institute about chronic lymphocytic leukemia, see the following:
Leukemia Home Page
What You Need to Know About™ Leukemia
Drugs Approved for Chronic Lymphocytic Leukemia
Targeted Cancer Therapies
Understanding Cancer Series: Targeted Therapies
Biological Therapies for Cancer: Questions and Answers
For general cancer information and other resources from the National Cancer Institute, see the following:
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