Blood cancer or leukemia is a type of cancer that attacks white blood cells produced by the bone marrow. Bone marrow or bone marrow in the human body produces three types of blood cells including white blood cells function as immune against infection , and red blood cells carry oxygen to function in the body and a small portion patelet blood cells that help the clotting process .
Leukima generally appear in person since the days of youth, bone marrow without clear cause has been known to produce white blood cells do not develop normal or abnormal . Normal white blood cells to reproduce again when the body needs or no place for the blood cells themselves . The human body will give you a sign or signal a regular basis when blood cells are expected to reproduce again ?
In the case of leukemia , the white blood cells do not respond to the sign tau signal given . Finally uncontrolled excessive production will come out of sumsul bone and can be found in the peripheral blood or peripheral blood . Number of abnormal white blood cells that is when excessive can disrupt the normal function of other cells . A person with this condition will show some symptoms such as susceptible to infectious diseases , anemia and bleeding .
Acute and Chronic Leukemia
Acute leukemia characterized the course of the disease is very rapid , lethal , and worse . If it is not treated promptly , it can cause death in a matter of weeks or days . While the chemical has a chronic course of the disease is not very fast so have a longer life expectancy , up to more than 1 year .
Leukemia cells are classified based on the type:
- Acute lymphocytic leukemia ( ALL) , is the most common type of leukemia in children . The disease is also found in adults who primarily have been aged 65 years or more .
- Acute myelocytic leukemia ( LMA ) is more common in adults than children . This type was formerly called nonlimfositik acute leukemia .
- Chronic lymphocytic leukemia ( LLK ) this often affects adults over the age of 55 years . also sometimes suffered by young adults, and hardly in children .
- Chronic myelocytic leukemia ( CML ) often occurs in adults can also occur in children , but very little .
