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- $Unique_ID{BRK04276}
- $Pretitle{}
- $Title{Tooth and Nail Syndrome}
- $Subject{Tooth and Nail Syndrome Dysplasia of Nails With Hypodontia
- Rapp-Hodgkin's Syndrome Nail Dystrophy-Deafness Syndrome Hidrotic Ectodermal
- Dysplasias Anhidrotic Ectodermal Dysplasias }
- $Volume{}
- $Log{}
-
- Copyright (C) 1988, 1989 National Organization for Rare Disorders, Inc.
-
- 537:
- Tooth and Nail Syndrome
-
- ** IMPORTANT **
- It is possible that the main title of the article (Tooth and Nail
- Syndrome) is not the name you expected. Please check the synonym list to
- find the alternate names and disorder subdivisions covered by this article.
-
- Synonyms
-
- Dysplasia of Nails With Hypodontia
-
- Information on the following diseases can be found in the Related
- Disorders section of this report:
-
- Rapp-Hodgkin's Syndrome
- Nail Dystrophy-Deafness Syndrome
- Hidrotic Ectodermal Dysplasias
- Anhidrotic Ectodermal Dysplasias
-
- General Discussion
-
- ** REMINDER **
- The information contained in the Rare Disease Database is provided for
- educational purposes only. It should not be used for diagnostic or treatment
- purposes. If you wish to obtain more information about this disorder, please
- contact your personal physician and/or the agencies listed in the "Resources"
- section of this report.
-
- Tooth and Nail Syndrome is a rare genetic, non-progressive disorder of
- the fetal ectodermal germ cell layer. The exact genetic and biochemical
- defects causing this disorder are not understood and are thought to vary
- between those affected.
-
- Symptoms
-
- Major symptoms of Tooth and Nail Syndrome may include lack of development of
- mandibular incisors, second molars, maxillary canines, and other permanent
- teeth. Abnormal growth of nails on the hands and feet also occurs.
-
- Causes
-
- The exact cause of Tooth and Nail Syndrome is not known, although it is
- thought to be inherited as an autosomal dominant trait. (Human traits
- including the classic genetic diseases, are the product of the interaction of
- two genes for that condition, one received from the father and one from the
- mother. In dominant disorders, a single copy of the disease gene (received
- from either the mother or father) will be expressed "dominating" the normal
- gene and resulting in appearance of the disease. The risk of transmitting
- the disorder from affected parent to offspring is 50% for each pregnancy
- regardless of the sex of the resulting child.)
-
- Affected Population
-
- Tooth and Nail Syndrome affects males and females in equal numbers. It is
- frequently found in high concentrations among Canadian Dutch Mennonite
- populations.
-
- Related Disorders
-
- There are fifty-two Syndromes associated with Ectodermal Dysplasia. Symptoms
- of the following disorders are the most closely related to those of Tooth and
- Nail Syndrome. Comparisons may be useful for a differential diagnosis:
-
- Rapp-Hodgkin's Syndrome is an inherited disorder in which the sweat
- glands are affected as well as the teeth and nails. (For more information on
- this disorder, choose Ectodermal Dysplasia as your search term in the Rare
- Disease Database).
-
- Nail Dystrophy-Deafness Syndrome is an inherited disorder in which the
- hearing is affected as well as the teeth and nails.
-
- Hidrotic Ectodermal Dysplasias is an inherited disorder in which the
- teeth are not affected as they are in Tooth and Nail Syndrome.
-
- Anhidrotic Ectodermal Dysplasias is an inherited disorder which affects
- the oil secreting (sebaceous) glands in the skin and hair shafts. Syndromes
- with this pattern tend to be more severe. (For more information on these
- disorders, choose Ectodermal Dysplasias as your search term in the Rare
- Disease Database).
-
- Therapies: Standard
-
- Treatment of Tooth and Nail Syndrome with the use of dentures may be helpful.
- Genetic counseling may be of benefit for patients and their families. Other
- treatment is symptomatic and supportive.
-
- Therapies: Investigational
-
- This disease entry is based upon medical information available through
- October 1989. Since NORD's resources are limited, it is not possible to keep
- every entry in the Rare Disease Database completely current and accurate.
- Please check with the agencies listed in the Resources section for the most
- current information about this disorder.
-
- Resources
-
- For more information on Tooth and Nail Syndrome, please contact:
-
- National Organization for Rare Disorders (NORD)
- P.O. Box 8923
- New Fairfield, CT 06812-1783
- (203) 746-6518
-
- National Foundation for Ectodermal Dysplasias
- 219 E. Main St.
- Mascoutah, IL 62258
- (618) 566-2020
-
- NIH/National Institute of Child Health and Human Development (NICHD)
- 9000 Rockville Pike
- Bethesda, MD 20892
- (301) 496-5133
-
- For genetic information and genetic counseling referrals:
-
- March of Dimes Birth Defects Foundation
- 1275 Mamaroneck Avenue
- White Plains, NY 10605
- (914) 428-7100
-
- Alliance of Genetic Support Groups
- 35 Wisconsin Circle, Suite 440
- Chevy Chase, MD 20815
- (800) 336-GENE
- (301) 652-5553
-
- References
-
- This Rare Disease Database entry is based upon outlines prepared by medical
- and dental students (1984-1986) at the Medical College of Virginia for their
- course in human genetics, and the following articles:
-
- MENDELIAN INHERITANCE IN MAN, 7th ed.: Victor A. McKusick; Johns Hopkins
- University Press, 1986. Pp.722.
-
-