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Sotos Syndrome

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Copyright 1986, 1990, 1995, 1997, 1998, 2005, 2009

NORD is very grateful to Juan F. Sotos, MD, Chief of Section – Endocrinology & Metabolism, Nationwide Children’s Hospital, for assistance in the preparation of this report.

Synonyms of Sotos Syndrome
  • Cerebral Gigantism

Disorder Subdivisions



General Discussion
Sotos syndrome is a variable genetic disorder characterized by excessive growth before and after birth. One of the major features of Sotos syndrome is a particular facial appearance that includes facial flushing, an abnormally prominent forehead (frontal bossing), down-slanting eyelid folds (palpebral fissures), prominent, narrow jaw, a long narrow face and a head shape that is similar to an inverted pear. Height and head circumference are measured to be greater than average for most affected children. Developmental delays are present in most children with Sotos syndrome and can include motor and language delays as well as mental retardation ranging from mild to severe. Other problems associated with Sotos syndrome include jaundice in newborns, curved spine (scoliosis), seizures, crossed eyes (strabismus), conductive hearing loss, congenital heart defects, kidney abnormalities and behavioral problems. Affected individuals also have a slightly increased risk to develop specific types of tumors. Sotos syndrome is caused by an abnormality (mutation) in the NSD1 gene.
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Organizations related to Sotos Syndrome
  • Arc
    1660 L Street, NW, Suite 301
    Washington DC 20036
    Phone #: 202-534-3700
    800 #: 800-433-5255
    e-mail: info@thearc.org
    Home page: http://www.thearc.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: http://rarediseases.info.nih.gov/GARD/EmailForm.aspx
    Home page: http://rarediseases.info.nih.gov/GARD
  • MUMS 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/
  • Madisons Foundation
    PO Box 241956
    Los Angeles CA 90024
    Phone #: 310-264-0826
    800 #: N/A
    e-mail: getinfo@madisonsfoundation.org
    Home page: http://www.madisonsfoundation.org
  • March of Dimes Birth Defects Foundation
    1275 Mamaroneck Avenue
    White Plains NY 10605
    Phone #: 914-997-4488
    800 #: 888-663-4637
    e-mail: Askus@marchofdimes.com
    Home page: http://www.marchofdimes.com
  • Restricted Growth Association
    PO Box 1024
    Peterborough Intl PE1 9GX
    Phone #: 030-0 1-11 1970
    800 #: --
    e-mail: office@restrictedgrowth.co.uk
    Home page: http://www.restrictedgrowth.co.uk
  • Sjældne Diagnoser / Rare Disorders Denmark
    Frederiksholms Kanal 2, 3rd Floor
    Copenhagen K None 1220
    Phone #: 45 -33 -14 00 10
    800 #: N/A
    e-mail: mail@sjaeldnediagnoser
    Home page: http://www.raredisorders.dk
  • Sotos Syndrome Support Association
    P.O. Box 4626
    Wheaton IL 60189-4626
    Phone #: N/A
    800 #: 888-246-7772
    e-mail: info@sotossyndrome.org
    Home page: http://www.sotossyndrome.org/
  • Sotos Syndrome Support Association of Canada/Association Canadienne d'entraide du Syndrome de Sotos
    1944 Dumfries
    Montreal, Quebec Intl H3P 2R9
    Phone #: --
    800 #: --
    e-mail: info@sssac.com
    Home page: http://www.sssac.com
  • Sotos Syndrome Support Group of Great Britain
    c/o Child Growth Foundation
    4 Mayfield Avenue
    Chiswick
    London None W4 1PW
    Phone #: --
    800 #: --
    e-mail: N/A
    Home page: N/A
  • Sotos, Juan, M.D.
    Nationwide Children’s Hospital
    700 Children's Drive
    Columbus OH 43205
    Phone #: 614-722-5125
    800 #: --
    e-mail: N/A
    Home page: N/A

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Last modified Wednesday, November 26, 2008