Leukemia if develops in the ssea marrow, which produces three types of sanguineous cells: Clulas red that they contain hemoglobina and is responsible for carrying oxygen for the body. Clulas white that they fight infections. Plaquetas that they assist the sanguineous coagulation. Leukemia is characterized by the extreme production of abnormal white cells, becoming populated the ssea marrow. The infiltration of the ssea marrow results in the reduction of the production and functioning of normal sanguineous cells. Prevalncia of the four types of leukemia acute Leukemia linfide is most common in small children. It also affects adults, especially of more than 65 years.
Acute leukemia mielide occurs more in adults of what in children. Chronic leukemia linfide affects adult more above of 55 years of age. Some times occur in young adults, but almost never in children. Chronic leukemia mielide occurs mainly in adults. A very small number of children is affected. Causes of the leukemia the accurate cause of the leukemia is not known, but it is influenced by genetic and ambient factors. The leucemias they result of somatic mutations in the DNA, which can spontaneously occur or due to exposition to the radiation or cancergenas substances, and has its probability influenced for genetic factors. Viruses also have been associates to some forms of leukemia.
ACUTE LEUCEMIAS MIELIDES (LMA) the acute leukemia are a neoplsica illness of the fabric hematopotico, characterized for the abnormal proliferation of the cells ancestors who lose the capacity of maturation and/or differentiation. Conditions that Predispem to the Development of Acute Mielide Leukemia. Ambient factors: alquilantes radiation, benzene, agents and other cytotoxic drugs; Acquired illnesses? Clonais hematopoiticas illnesses? Other hematopoiticas illnesses: aplstica anemia, eosinoflica fascite, mieloma Classification the 10 LMA occurs as more than variant, that can be identified by a combination of sanguineous morphology and to medular in blades coradas, imunofenotipagem (profile of CDs) in citometria in flow, histoqumica analysis (to the times, necessary) and citogentica analysis.