How are chromosomal abnormalities used in the diagnosis of myelodysplastic syndrome (MDS)?

Updated: Jul 24, 2018
  • Author: Emmanuel C Besa, MD; Chief Editor: Koyamangalath Krishnan, MD, FRCP, FACP  more...
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Answer

Chromosomal abnormalities are clonal and include 5q-, monosomy 7 (-7) or 7q-, trisomy 8 (+8), and numerous other less frequent abnormalities. Multiple combinations may be present; this indicates a very poor prognosis. A single abnormality, except those involving chromosome 7, usually indicates good prognosis and survival.


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