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Myelodysplastic Syndromes

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Copyright 2004, 2005, 2006

NORD is grateful to John Barrett, MD, NIH National Heart, Lung, and Blood Institute, for assistance in the preparation of this report.

Synonyms of Myelodysplastic Syndromes
  • Myelodysplasia
  • Pre-leukemia

Disorder Subdivisions



General Discussion
Myelodysplastic syndromes (MDS) are a rare group of blood disorders that occur as a result of improper development of blood cells within the bone marrow. The three main types of blood cells (i.e., red blood cells, white blood cells and platelets) are affected. Red blood cells deliver oxygen to the body, white blood cells help fight infections, and platelets assist in clotting to stop blood loss. These improperly developed blood cells fail to develop normally and enter the bloodstream. As a result, individuals with MDS have abnormally low blood cell levels (low blood counts). General symptoms associated with MDS include fatigue, dizziness, weakness, bruising and bleeding, frequent infections, and headaches. In some cases, MDS may progress to life-threatening failure of the bone marrow or develop into an acute leukemia. The exact cause of MDS is unknown. There are no certain environmental risk factors.

Organizations related to Myelodysplastic Syndromes
  • American Cancer Society, Inc.
    1599 Clifton Road NE
    Atlanta GA 30329
    Phone #: 404-320-3333
    800 #: 800-227-2345
    e-mail: N/A
    Home page: http://www.cancer.org
  • Anemia Institute for Research and Education
    151 Bloor Street West
    Suite 600
    Toronto, Ontario None M5S 1S4
    Phone #: 416--96-9-7431
    800 #: 877--99-2-6364
    e-mail: info@anemiainstitute.org
    Home page: http://www.anemiainstitute.org
  • Aplastic Anemia & MDS International Foundation, Inc.
    100 Park Avenue
    Suite 108
    Rockville MD 20850
    Phone #: 301-279-7202
    800 #: 800-747-2820
    e-mail: help@aamds.org
    Home page: http://www.aamds.org
  • Aplastic Anemia & Myelodysplasia Association of Canada
    11181 Yonge Street,Suite 321
    Richmond Hill
    Ontario Intl L4S 1L2
    Phone #: 905-780-0698
    800 #: N/A
    e-mail: info@aamac.ca
    Home page: http://www.aamac.ca
  • Cancer.Net
    American Society of Clinical Oncology
    2318 Mill Road
    Suite 800
    Alexandria VA 22314
    Phone #: 571-483-1780
    800 #: 888-651-3038
    e-mail: contactus@cancer.net
    Home page: http://www.cancer.net/patient
  • Friends of Cancer Research
    2231 Crystal Drive
    Suite 200
    Arlington VA 22202
    Phone #: 703-302-1503
    800 #: N/A
    e-mail: info@focr.org
    Home page: http://www.focr.org
  • Genetic and Rare Diseases (GARD) Information Center
    PO Box 8126
    Gaithersburg MD 20898-8126
    Phone #: 301-251-4925
    800 #: 888-205-2311
    e-mail: ordr@od.nih.gov
    Home page: http://rarediseases.info.nih.gov/Default.aspx
  • Leukemia & Lymphoma Society
    1311 Mamaroneck Avenue
    Suite 310
    White Plains NY 10605
    Phone #: 914-949-5213
    800 #: 800-955-4572
    e-mail: infocenter@LLS.org
    Home page: http://www.LLS.org
  • MUMS (Mothers United for Moral Support, Inc) National Parent-to-Parent Network
    150 Custer Court
    Green Bay WI 54301-1243
    Phone #: 920-336-5333
    800 #: 877-336-5333
    e-mail: mums@netnet.net
    Home page: http://www.netnet.net/mums/
  • Myeloproliferative Disease Support and Free Daily Email Digest
    2011 Flagler Ave.
    Key West FL 33040
    Phone #: 305-295-4444
    800 #: N/A
    e-mail: roberttollen@gmail.com or mensabrain@aol.com
    Home page: http://www.MPDSUPPORT.ORG
  • Myeloproliferative Mailing List (MPD-SUPPORT-L)
    3706 North Roosevelt Blvd.
    Key West FL 44030
    Phone #: 305-295-4444
    800 #: --
    e-mail: lov2laf@bellsouth.net
    Home page: http://www.mpdsupport.org
  • NIH/National Heart, Lung and Blood Institute Information Center
    P.O. Box 30105
    Bethesda MD 20824-0105
    Phone #: 301-592-8573
    800 #: --
    e-mail: nhlbiinfo@rover.nhlbi.nih.gov
    Home page: N/A
  • National Bone Marrow Transplant Link
    20411 W. 12 Mile Rd
    Suite 108
    Southfield MI 48076
    Phone #: 248-358-1886
    800 #: 800-546-5268
    e-mail: info@nbmtlink.org
    Home page: http://www.nbmtlink.org
  • National Cancer Institute
    6116 Executive Blvd, MSC 8322, Room 3036A
    Bethesda MD 20892-8322
    Phone #: 301-435-3848
    800 #: 800-422-6237
    e-mail: N/A
    Home page: http://www.cancer.gov
  • National Marrow Donor Program
    3001 Broadway St. NE
    Suite 500
    Minneapolis MN 55413-1753
    Phone #: 612-627-5800
    800 #: 800-627-7692
    e-mail: N/A
    Home page: http://www.marrow.org
  • Patient Registries at Slone: Myeloma & MDS
    Slone Epidemiology Center at Boston University
    1010 Commonwealth Avenue
    Boston MA 02215
    Phone #: 617-734-6006
    800 #: 800-231-3769
    e-mail: registry@slone.bu.edu
    Home page: http://www.bu.edu/prs
  • Rare Cancer Alliance
    1649 North Pacana Way
    Green Valley AZ 85614
    Phone #: 520-625-5495
    800 #: --
    e-mail: sharon.lane@rare-cancer.org
    Home page: http://www.rare-cancer.org
  • UCSF Hemophilia Treatment Center
    400 Parnassus Ave.
    First Floor
    San Francisco CA 94143
    Phone #: 415-353-2986
    800 #: N/A
    e-mail: N/A
    Home page: http://www.ucsfhealth.org/adult/medical_services/blood/hemophilia/index.html
  • World Health Organization (WHO) Regional Office for the Americas (AMRO)
    Pan American Health Organization (PAHO)
    525 23rd Street NW
    Washington DC 20037
    Phone #: 202-974-3000
    800 #: --
    e-mail: postmaster@paho.org
    Home page: http://www.who.ch/

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Last modified Wednesday, November 26, 2008