Agenesis of Corpus Callosum

National Organization for Rare Disorders, Inc.

Important
It is possible that the main title of the report Agenesis of Corpus Callosum is not the name you expected. Please check the synonyms listing to find the alternate name(s) and disorder subdivision(s) covered by this report.

Synonyms

  • ACC
  • Corpus Callosum, Agenesis

Disorder Subdivisions

  • Autosomal Recessive Inheritance ACC (e.g. Andermann syndrome)
  • X-Linked Dominant Inheritance ACC (e.g. ARX)
  • Acquired Form of ACC
  • Aicardi Syndrome

General Discussion

Agenesis of corpus callosum (ACC) is a rare disorder that is present at birth (congenital). It is characterized by a partial or complete absence (agenesis) of an area of the brain that connects the two cerebral hemispheres. This part of the brain is normally composed of transverse fibers. The cause of agenesis of corpus callosum is usually not known, but it can be inherited as either an autosomal recessive trait or an X-linked dominant trait. It can also be caused by an infection or injury during the twelfth to the twenty-second week of pregnancy (intrauterine) leading to developmental disturbance of the fetal brain. Intrauterine exposure to alcohol (Fetal alcohol syndrome) can also result in ACC. In some cases mental retardation may result, but intelligence may be only mildly impaired and subtle psychosocial symptoms may be present.

ACC is frequently diagnosed during the first two years of life. An epileptic seizure can be the first symptom indicating that a child should be tested for a brain dysfunction. The disorder can also be without apparent symptoms in the mildest cases for many years.
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Resources

March of Dimes Birth Defects Foundation
1275 Mamaroneck Avenue
White Plains, NY 10605
Tel: (914)997-4488
Fax: (914)997-4763
Tel: (888)663-4637
Email: Askus@marchofdimes.com
Internet: http://www.marchofdimes.com

Arc (a national organization on mental retardation)
1010 Wayne Ave
Suite 650
Silver Spring, MD 20910
Tel: (301)565-3842
Fax: (301)565-3843
Tel: (800)433-5255
TDD: (817)277-0553
Email: info@thearc.org
Internet: http://www.thearc.org/

National Hydrocephalus Foundation
12413 Centralia
Lakewood, CA 90715-1623
USA
Tel: (562)924-6666
Fax: (562)924-6666
Tel: (888)857-3434
Email: nhf@earthlink.net
Internet: http://www.nhfonline.org

Guardians of Hydrocephalus Research Foundation
2618 Avenue Z
Brooklyn, NY 11235
Tel: (718)743-4473
Fax: (718)743-1171
Tel: (800)458-8655
Email: ghrf2618@aol.com
Internet: http://www.ghrforg.org/

Hydrocephalus Association
870 Market Street
Suite 705
San Francisco, CA 94102
USA
Tel: (415)732-7040
Fax: (415)732-7044
Tel: (888)598-3789
Email: pip@hydroassoc.org
Internet: http://www.hydroassoc.org

Agenesis of the Corpus Callosum (ACC) Network
5749 Merrill Hall
Room 18
University of Maine
Orono, ME 04469-5749
Tel: (207)581-3119
Fax: (207)581-3120
Email: um-acc@maine.edu
Internet: http://www.umaine.edu/edhd/research/accnetwork.htm

National Institute of Neurological Disorders and Stroke (NINDS)
P.O. Box 5801
Bethesda, MD 20824
Tel: (301)496-5751
Fax: (301)402-2186
Tel: (800)352-9424
TDD: (301)468-5981
Email: me20t@nih.gov
Internet: http://www.ninds.nih.gov/

Birth Defect Research for Children, Inc.
800 Celebration Ave, Suite 225
Orlando, FL 34747
USA
Tel: (407)566-8304
Fax: (407)895-0824
Email: staff@birthdefects.org
Internet: http://www.birthdefects.org

MUMS National Parent-to-Parent Network
150 Custer Court
Green Bay, WI 54301-1243
USA
Tel: (920)336-5333
Fax: (920)339-0995
Tel: (877)336-5333
Email: mums@netnet.net
Internet: http://www.netnet.net/mums/

Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg, MD 20898-8126
Tel: (301)251-4925
Fax: (301)251-4911
Tel: (888)205-2311
TDD: (888)205-3223
Email: ordr@od.nih.gov
Internet: http://rarediseases.info.nih.gov/Default.aspx

National Organization of Disorders of the Corpus Callosum
PMB 363 18032-C Lemon Drive
Yorba Linda, CA 92886
Tel: (714)747-0063
Fax: (714)693-0808
Email: info@nodcc.org
Internet: http://www.nodcc.org

Madisons Foundation
PO Box 241956
Los Angeles, CA 90024
Tel: (310)264-0826
Fax: (310)264-4766
Email: getinfo@madisonsfoundation.org
Internet: http://www.madisonsfoundation.org

For a Complete Report

For a Complete Report

This is an abstract of a report from the National Organization for Rare Disorders, Inc. ® (NORD). A copy of the complete report can be obtained for a small fee by visiting the NORD website. The complete report contains additional information including symptoms, causes, affected population, related disorders, standard and investigational treatments (if available), and references from medical literature. For a full-text version of this topic, see http://www.rarediseases.org/search/rdblist.html

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