Hi Helen,
In about 50 % of the MDS patients the young blood cells in the bone marrow have chromosome aberrations. Some of these are good, other intermediate and some bad. They prevent the young blood cells from normal development to mature well functioning blood cells.
http://www.pubmedcentral.nih.gov/art...?artid=2413090
Different reseachers have found different results. As far as I understand from this article the author reports that chromosome 3 abnormality has an intermediate prognosis. If a chromosome aberration really has disappeared it is a good sign. You know the prognosis depends on many factors like age and other diseases.
Kind regards
Birgitta-A
Chromosome aberrations 12p- and X-