Leukemia

Leukemia is a type of disorder of the hematopoietic stem cell system of creation which is also a disease that is quite fierce. Abnormalities of the ability to further differentiation and maturation of leukocytes stagnant at different stages of cell development in the bone marrow and other hematopoietic tissues. Figures accumulation of abnormal cells and the infiltration of other organs and tissue, and normal hematopoietic function suppression. Leukemia commonly cause anemia, bleeding infection, and symptoms of organ infiltration.

Leukemia or blood cancer occupy 2.5% of the total number of cancer there is. Around the world, every year there are about 47,150 people who are diagnosed as suffering from leukemia. And every year anyway, there are about 23,540 people who died of leukemia cases. In childhood cancer, usually leukemia risk will be high at the age of 0-4 years, and in men and women comparison rate is 7: 5.

Based on morphological characteristics and cell source, leukemia can be divided into the following categories:

1. Acute myeloid leukemia: a type of white blood cell proliferation of abnormal myeloid leukemia. Acute myeloid leukemia is characterized by the rapid proliferation of abnormal cells in the bone marrow and affect the growth of normal blood cells other.

2. Chronic myeloid leukemia: the clone disease in hematopoietic stem cell proliferation, which also has a proliferation of bone marrow, blood leukocytosis generally will multiply and have an enlarged spleen, symptoms of which is the main feature of chronic myeloid leukemia.

3. Acute lymphoblastic leukemia: is a disruption in lymphoblastoid cell hyperplasia and abnormalities in lymphoblastoid cell formation or differentiation of large numbers of mature white blood cells in the block, which is a leukemia that can develop rapidly.

4. Chronic lymphocytic leukemia: leukemia is a type of malignant tumor that affects lymphocytes, chronic lymphocytic leukemia characterized by a large number of immature lymphocytes cell aggregation, inhibit normal hematopoietic bone marrow.