Treacher Collins Syndrome
National Organization for Rare Disorders, Inc.
It is possible that the main title of the report Treacher Collins Syndrome 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.
- Treacher Collins-Franceschetti syndrome
- mandibulofacial dysostosis
- Franceschetti-Zwalen-Klein syndrome
Treacher Collins syndrome (TCS) is a rare genetic disorder characterized by distinctive abnormalities of the head and face area resulting from underdevelopment (hypoplasia) of certain facial structures including the jaw, cheekbones and nearby structures (zygomatic complex). Craniofacial abnormalities tend to involve the cheekbones, jaws, mouth, ears, and/or eyes. In addition to the various facial abnormalities, affected individuals may have malformations of the external ears and middle ear structures and eye (ocular) abnormalities including an abnormal downward slant to the opening between the upper and lower eyelids (palpebral fissures). Affected individuals may develop hearing loss and breathing (respiratory) difficulties. Furthermore, brain and behavioral anomalies such as microcephaly and psychomotor delay have also been occasionally reported as part of the condition. The specific symptoms and physical characteristics associated with TCS can vary greatly from one individual to another. Some individuals may have mild symptoms and go undiagnosed, while others may develop serious, life-threatening respiratory complications. TCS is caused by a mutation in the TCOF1, POLR1C or POLR1D genes. In the case of TCOF1 or POLR1D, the mode of inheritance is autosomal dominant, while in the case of POLR1C it is autosomal recessive.
TCS is named after Edward Treacher Collins, a London ophthalmologist who first described the disorder in the medical literature in 1900. TCS is also known as mandibulofacial dysostosis or Treacher Collins-Franceschetti syndrome.
Children's Craniofacial Association
13140 Coit Road
Dallas, TX 75240
FACES: The National Craniofacial Association
PO Box 11082
Chattanooga, TN 37401
Let's Face It
University of Michigan, School of Dentistry / Dentistry Library
1011 N. University
Ann Arbor, MI 48109-1078
PO Box 751112
Las Vegas, NV 89136
American Society for Deaf Children
800 Florida Avenue NE
Washington, DC 20002-3695
Ear Anomalies Reconstructed: Atresia/Microtia Support Group
72 Durand Road
Maplewood, NJ 07040
NIH/National Institute on Deafness and Other Communication Disorders
31 Center Drive, MSC 2320
Bethesda, MD 20892-3456
Craniofacial Foundation of America
975 East Third Street
Chattanooga, TN 37403
Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg, MD 20898-8126
Atresia/Microtia Online E-mail Support Group
PO Box 241956
Los Angeles, CA 90024
Let Them Hear Foundation
1900 University Avenue, Suite 101
East Palo Alto, CA 94303
American Academy of Audiology
11730 Plaza America Drive, Suite 300
Reston, VA 20190
Cleft Lip and Palate Foundation of Smiles
2044 Michael Ave SW
Wyoming, MI 49509
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It is possible that the title of this topic is not the name you selected. Please check the Synonyms listing to find the alternate name(s) and Disorder Subdivision(s) covered by this report
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Last Updated: 5/24/2013
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