Myelodysplastic syndrome

diverse collection of blood-related medical conditions with ineffective production of the myeloid class of blood cells

The Myelodysplastic syndrome (MDS) is a group of diseases that affect the production of blood. These diseases were formerly known as preleukemia, mostly because they can lead to leukemia.

Myelodysplastic syndrome
Classification and external resources
ICD-10D46.
ICD-9238.7
ICD-O:9980/0-M9989/3
DiseasesDB8604
eMedicinemed/2695 ped/1527
MeSHD009190
Dysplastic megakaryocyte in marrow of patient with myelodysplastic disorder.

Overview

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Myelodysplastic syndromes affect the bone marrow stem cells. The production of blood does not rely on good stem cells, but ones that have been modified genetically. This means that the production of red blood cells, sometimes of white blood cells and blood platelets changed. The production becomes inefficient, or goes wrong altogether. Most of the time, this manifests in anemia. Depending on the severity of the condition, it can also cause hemorrhages, and infections with fever.

Epidemiology

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Most of those who have these conditions are 60 years or older, but the younger can get it too, especially if they went through a form of chemotherapy. Most of the suffers die from the disease, usually after six to thirty months. The only known cure is a stem cell transplant. About a third of those suffering contract leukemia within a few months to years.