Measuring WBCs

• The Basics
• Reactive
• Terms

• Acute Leukemia
• Dysplasia
• Myeloproliferative

• Acute
• Chronic 

Quiz Please

• Leukemias are malignancies of either myeloid or lymphoid origin in which there is substantial bone marrow replacement.
• Malignant cells are often present in the circulating blood.
• Symptoms are generally due to suppression of the healthy marrow.
• Anemia
• Infections
• Bleeding
• Acute leukemias arise from one cell in a committed cell line, and are characterized by proliferation of immature cells (blasts).
• Untreated acute leukemias have a rapid course.
• Acute leukemias tend occur in a younger age group.
• Chronic leukemias are characterized by proliferation of mature cells.
• Chronic leukemias tend to occur in an older age group.
• Chronic myelogenous leukemia is one type of stem cell malignancy.
• In addition to CML, there are myeloproliferative disorders.
• Malignancies of lymphoid origin may occur as either a leukemia, with significant bone marrow involvement, or as a lymphoma.

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