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- $Unique_ID{BRK03623}
- $Pretitle{}
- $Title{Conradi-Hunermann Syndrome}
- $Subject{Conradi-Hunermann Syndrome Chondrodysplasia Punctata
- Chondrodystrophia Calcificans Congenita Dysplasia Epiphysialis Punctata
- Conradi Disease Chondrodysplasia Rhizomelic type Fetal Warfarin Syndrome
- Fairbanks Disease Multiple Epiphyseal Dysplasia }
- $Volume{}
- $Log{}
-
- Copyright (C) 1987, 1990 National Organization for Rare Disorders, Inc.
-
- 365:
- Conradi-Hunermann Syndrome
-
- ** IMPORTANT **
- It is possible the main title of the article (Conradi-Hunermann Syndrome)
- is not the name you expected. Please check the SYNONYMS listing to find the
- alternate names, disorder subdivisions, and related disorders covered by this
- article.
-
- Synonyms
-
- Chondrodysplasia Punctata
- Chondrodystrophia Calcificans Congenita
- Dysplasia Epiphysialis Punctata
- Conradi Disease
-
- Information on the following diseases can be found in the Related
- Disorders section of this report:
-
- Chondrodysplasia, Rhizomelic type
- Fetal Warfarin Syndrome
- Fairbanks Disease, also known as Multiple Epiphyseal Dysplasia
-
- 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.
-
- Conradi-Hunermann Syndrome is a form of Chondrodysplasia Punctata. It
- is a rare inherited disease affecting infants and young children. This
- disorder is marked by mild to moderate growth deficiencies and unusual facial
- characteristics. Large skin pores and sparse hair that tends to be coarse
- may also be symptomatic of this condition.
-
- Symptoms
-
- Conradi-Hunermann Syndrome is characterized by mild to moderate growth
- deficits in infants and young children. Unusual facial characteristics
- commonly occur. Children with this disorder usually have a shortened neck
- and slowed growth of arms or legs which occurs as a result of calcium buildup
- (calcification) at the ends of bones (epiphyses). In addition, spinal
- curvature (Scoliosis) may occur even in infancy. Joints may resist
- stretching or have a limitation of movement due to the buildup of fibrous
- tissue around them. Breakdown of skin cells may cause large pores resembling
- "orange peel" and sparse hair that tends to be coarse.
-
- Cataracts and yellow scaly skin (ichthyosis) may occur in some cases of
- Conradi-Hunermann Syndrome. Excess accumulation of fluid in body cavities or
- tissues, mental retardation and infections may also occur in a small
- percentage of cases. (For more information, choose "Ichthyosis" as your
- search term in the Rare Disease Database.)
-
- Causes
-
- Conradi-Hunermann Syndrome is 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
-
- Conradi-Hunermann Syndrome is present at birth and seems to affect males and
- females in equal numbers. It is very rare.
-
- Related Disorders
-
- Chondrodysplasia, Rhizomelic type is a form of Conradi-Hunermann Syndrome
- inherited as an autosomal recessive trait. Patients may be affected by heart
- irregularities, vision problems, spasticity and mental retardation. The hip
- and shoulder joints are affected by accumulations of calcium (calcifications)
- which are linked to growth limitations. Patients may have unusual facial
- characteristics. Recurrent infections are common with this disorder.
-
- Fetal Warfarin Syndrome involves altered fetal development. This
- disorder results from a woman taking the drug Warfarin (an anticoagulant)
- during pregnancy. Symptoms are similar to those of Conradi-Hunermann
- Syndrome and include growth deficits, unusual facial characteristics, mental
- retardation and recurrent infections.
-
- Fairbanks Disease (Multiple Epiphyseal Dysplasia) is a mild form of
- dwarfism inherited as a dominant trait. Symptoms may not be apparent during
- early childhood, but pain may occur later in hips, knees or ankles due to
- developmental abnormalities of bones. Stature may be only slightly shortened
- while arms, legs, fingers or toes may be unusually short. In some cases,
- movement may be somewhat restricted. (For more information on this disorder,
- choose "Fairbanks" as your search term in the Rare Disease Database.)
-
- Therapies: Standard
-
- Treatment of Conradi-Hunermann Syndrome is symptomatic and supportive.
- Orthopedic surgery may be helpful in alleviating problems associated with
- bone growth abnormalities. Vision problems may also be treated surgically or
- with corrective lenses. Skin symptoms should be treated by a dermatologist.
- Genetic counseling may be of benefit to families with children who have
- Conradi-Hunermann Syndrome.
-
- Therapies: Investigational
-
- This disease entry is based upon medical information available through
- January 1990. 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 Conradi-Hunermann Syndrome, please contact:
-
- National Organization for Rare Disorders (NORD)
- P.O. Box 8923
- New Fairfield, CT 06812-1783
- (203) 746-6518
-
- International Center for Skeletal Dysplasias
- St. Joseph Hospital
- 7620 York Rd.
- Towson, MD 21204
- (301) 337-1250
-
- The National Arthritis and Musculoskeletal and Skin Diseases Information
- Clearinghouse
- Box AMS
- Bethesda, MD 20892
- (301) 495-4484
-
- NIH/National Eye Institute
- 9000 Rockville Pike
- Bethesda, MD 20892
- (301) 496-5248
-
- The Magic Foundation
- 1327 N. Harlem Ave.
- Oak Park, IL 60302
- (708) 383-0808
-
- Human Growth Foundation (HGF)
- 7777 Leesburg Pike
- P.O. Box 3090
- Falls Church, VA 22043
- (703) 883-1773
- (800) 451-6434
-
- Parents of Dwarfed Children
- 11524 Colt Terrace
- Silver Spring, MD 20902
-
- Little People of America
- P.O. Box 633
- San Bruno, CA 94066
- (415) 589-0695
-
- Short Stature Foundation
- 17200 Jamboree Rd., Suite J
- Irvine, CA 92714-5828
- (714) 474-4554
- 800-24 DWARF
-
- For more information on Scoliosis, please contact:
- The National Scoliosis Foundation, Inc.
- 72 Mount Auburn St.
- Watertown, MA 02172
- (617) 926-0397
-
- For More Information on Ichthyosis, please contact:
- National Ichthyosis Foundation
- P.O. Box 252
- Belmont, CA 94002
- (415) 591-1653
-
- For information on genetics and genetic counseling referrals, please
- contact:
-
- 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
-
- CLINICAL AND GENETIC ASPECTS OF CONRADI-HUNERMANN DISEASE. A REPORT OF THREE
- FAMILIAL CASES AND REVIEW OF THE LITERATURE: M.C. Silengo, et. al.; J
- Pediatr (Dec. 1980, issue 97(6)). Pp. 911-917.
-
- ULTRASTRUCTURAL ASPECTS OF CHONDRODYSTROPHIA CALCIFICANS CONGENITA
- (SYNDROME OF CONRADI-HUNERMANN): E. Bonucci, et. al.; Virchows Arch [Pathol
- Anat] (Feb. 18, 1977, issue 373(1)). Pp. 23-35.
-
- CHONDRODYSPLASIA PUNCTATA. CONRADI-HUNERMANN SYNDROME: D.V. Edidin, et.
- al.; Arch Dermatol (Oct. 1977, issue 113(10)). Pp. 1431-1434.
-
-