Posts Tagged ‘Blood’

Childhood leukemia

Chilhood  LeukemiaThe adult leukemia in a child is sad apierta heart because leukemia is a term that refers to a group of diseases which are very complex and different, which affects white balloons. Leukemia is a malignant disease is more common in childhood, representing approximately 30% of cancers in children.

They are classified as acute and chronic leukemia, based on the level of maturation of the neoplastic population. The acute is characterized by a severe defect in maturation, leading to an accumulation of immature cells, there is no failure in the production of white blood cells differentiated.

Chronic leukemia is the contrast, defined by hyperplasia of mature elements, which tend to be relatively indolent disorders at an early stage, but then can become acute leukemia. 85% of leukemias in children are a form of lymphocytic leukemia, acute myeloid and 10% and 5% myeloid leukemia. Chronic lymphocytic leukemia do not arise in the pediatric series.

Affect the population at a rate of 125,000 people in the age group 0 to 14 years. The risk of leukemia in a child in the first ten years is 12,880. The peak frequency is between 2 and 5 years, and few children have lymphoid leukemia 2 years and older than 10 years.

Malaria

Malaria

Malaria is a parasitic disease that is transmitted from human to human by the bite of infected Anopheles mosquitoes. In humans, the parasites (called sporozoites) migrate to the liver where they mature and become merozoites, which enter the bloodstream and infect red blood cells.

The parasites multiply within red corpuscles, after 48 to 72 hours, break and infect more red blood cells. The first symptoms usually occur 10 days to 4 weeks after infection, although they may appear as early as 8 days or up to 1 year thereafter. Then, symptoms of the disease occur in cycles of 48 to 72 hours.

Most symptoms are caused by the massive release of merozoites into the bloodstream, the anemia resulting from destruction of red blood cells and the problems caused by large amounts of free hemoglobin released into the circulation after the breakdown of red blood cells .

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