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- $Unique_ID{BRK03531}
- $Pretitle{}
- $Title{Bloom Syndrome}
- $Subject{Bloom Syndrome Facial Telangiectasis of Dwarfs Levi's Type Dwarfism
- Bloom-Torre-Mackacek Syndrome}
- $Volume{}
- $Log{}
-
- Copyright (C) 1986, 1987, 1990 National Organization for Rare Disorders,
- Inc.
-
- 165:
- Bloom Syndrome
-
- ** IMPORTANT **
- It is possible that the main title of the article (Bloom Syndrome) is not
- the name you expected. Please check the SYNONYM listing to find the
- alternate names and disorder subdivisions covered by this article.
-
- Synonyms
-
- Facial Telangiectasis of Dwarfs
- Levi's Type Dwarfism
- Bloom-Torre-Mackacek Syndrome
-
- 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.
-
-
- Bloom Syndrome is a hereditary form of dwarfism accompanied by
- abnormalities of the facial skin, unusual sensitivity to sunlight, poor
- resistance to infections, and, later in life, susceptibility to cancers. It
- affects primarily males of Eastern European Jewish descent. Except for the
- susceptibility to infections and cancer, Bloom Syndrome patients have
- generally good health, especially during infancy and childhood.
-
- Symptoms
-
- Infants with Bloom Syndrome are small at birth and fail to grow to normal
- size even though body proportions remain essentially normal throughout
- development. The skin is highly sensitive to sunlight, especially on the
- face. A reddish rash due to the dilatation of many tiny capillaries beneath
- the surface of the skin (telangiectasis) covers the face. There may be
- darker or lighter patches of skin on the body.
-
- Affected individuals may also have immunological abnormalities which
- render them unusually susceptible to infections of various kinds. In
- addition, many patients eventually develop cancer. The observation that the
- chromosomes of Bloom Syndrome patients are remarkably fragile may relate to
- this.
-
- Patients often have a small, narrow face. Occasionally, there are
- abnormalities of the eyes, ears, hands or feet.
-
- Causes
-
- Bloom Syndrome is inherited through an autosomal recessive mechanism. (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 recessive disorders, the condition does not appear
- unless a person inherits the same defective gene from each parent. If one
- receives one normal gene and one gene for the disease, the person will be a
- carrier for the disease, but usually will show no symptoms. The risk of
- transmitting the disease to the children of a couple, both of whom are
- carriers for a recessive disorder, is twenty-five percent. Fifty percent of
- their children will be carriers, but healthy as described above. Twenty-five
- percent of their children will receive both normal genes, one from each
- parent and will be genetically normal.)
-
- Affected Population
-
- Bloom Syndrome affects persons of Ashkenazic Jewish ancestry most often.
-
- Males seem to be affected more often than females.
-
- Therapies: Standard
-
- Therapy for persons with Bloom Syndrome is symptomatic, e.g., sunscreen,
- antibiotics and cancer therapy when necessary.
-
- 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 Bloom Syndrome, please contact:
-
- National Organization for Rare Disorders (NORD)
- P.O. Box 8923
- New Fairfield, CT 06812-1783
- (203) 746-6518
-
- NIH/National Institute of Child Health and Human Development
- 9000 Rockville Pike
- Bethesda, MD 20892
- (301) 496-5133
-
- Bloom Syndrome Registry
- Laboratory of Human Genetics
- The New York Blood Center
- 310 E. 67th Street
- New York, NY 10021
- (212) 570-3075
-
- 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
-
- National Foundation for Jewish Genetic Diseases
- 250 Park Avenue
- New York, NY 10177
- (212) 682-5550
-
- 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
-
- CECIL TEXTBOOK OF MEDICINE, 18th ed.: James B. Wyngaarden, and Lloyd H.
- Smith, Jr., Eds.: W. B. Saunders Co., 1988. Pp. 168, 1113, 1001, 1096.
-
- SMITH'S RECOGNIZABLE PATTERNS OF HUMAN MALFORMATION, 4th ed., Kenneth L.
- Jones, M.D., W.B. Saunders, Co. 1988. Pp. 94-5.
-
-