home *** CD-ROM | disk | FTP | other *** search
- $Unique_ID{BRK03686}
- $Pretitle{}
- $Title{Dysplastic Nevus Syndrome}
- $Subject{Dysplastic Nevus Syndrome B-K Mole Syndrome CMM Cutaneous Malignant
- Melanoma, Hereditary DNS, Hereditary Familial Atypical Mole-Malignant Melanoma
- Syndrome FAMMM HCMM Malignant Melanoma Basal Cell Carcinoma Xeroderma
- Pigmentosum}
- $Volume{}
- $Log{}
-
- Copyright (C) 1989 National Organization for Rare Disorders, Inc.
-
- 633:
- Dysplastic Nevus Syndrome
-
- ** IMPORTANT **
- It is possible that the main title of this article (Dysplastic Nevus
- 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
-
- B-K Mole Syndrome
- CMM
- Cutaneous Malignant Melanoma, Hereditary
- DNS, Hereditary
- Familial Atypical Mole-Malignant Melanoma Syndrome
- FAMMM
- HCMM
- Malignant Melanoma
-
- Information on the following disorders can be found in the Related
- Disorders section of this report:
-
- Basal Cell Carcinoma
- Xeroderma Pigmentosum
-
- 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 physician and/or the agencies listed in the "Resources" section
- of this report.
-
- Dysplastic Nevus Syndrome is a malignant genetic skin disorder
- characterized by mole-like tumors. These tumors may appear in different
- sizes, shapes, and shades of color (usually reddish-brown to pink). The
- tumors have a variable ability for spreading to adjacent parts of the skin,
- or through the blood and lymph circulation to other organs. Dysplastic Nevus
- Syndrome may later evolve into Malignant Melanoma, a common form of skin
- cancer.
-
- Symptoms
-
- Symptoms of Dysplastic Nevus Syndrome usually start during adulthood. The
- disorder is characterized by large moles, variable in number, which are
- reddish-brown to pink in color. The moles have an irregular border. The
- presence of dust-like melanin which gives the moles their color, and
- abnormally large nuclei of skin cells called melanocytes, all visible under
- the microscope, are characteristic of Dysplastic Nevus Syndrome. The mole-
- like tumors may spread to adjacent parts of the skin, or through the blood
- and lymph circulation, to other organs. Certain changes in the melanocyte
- nuclei indicate when Dysplastic Nevus Syndrome may be changing to Malignant
- Melanoma.
-
- Causes
-
- Dysplastic Nevus Syndrome is a disorder inherited through autosomal dominant
- genes. (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 other normal gene and resulting in appearance of
- the disease. The risk of transmitting the disorder from affected parent to
- offspring is 50 percent for each pregnancy regardless of the sex of the
- resulting child.)
-
- Affected Population
-
- Symptoms of Dysplastic Nevus Syndrome usually appear in adulthood. Males and
- females are affected in equal numbers.
-
- Related Disorders
-
- Symptoms of the following disorders can be similar to those of Dysplastic
- Nevus Syndrome. Comparisons may be useful for a differential diagnosis:
-
- Basal Cell Carcinomas are a common form of skin cancer that may appear as
- small, shiny, firm nodules; ulcerated, crusted lesions; flat, scar-like
- hardened plaques; or lesions difficult to differentiate from psoriasis or
- localized dermatitis.
-
- Xeroderma Pigmentosum is a rare autosomal recessive hereditary skin
- disorder which begins during early childhood. It is characterized by a
- defect in the ability of certain connective tissue cells (fibroblasts) to
- repair skin damaged by ultraviolet rays. The skin of people with Xeroderma
- Pigmentosum is markedly hypersensitive to sunlight. (For more information,
- choose "Xeroderma" as your search term in the Rare Disease Data Base.)
-
- Therapies: Standard
-
- Treatment of Dysplastic Nevus Syndrome involves Vitamin-A derivatives
- (retinoids) used as a topical ointment. In some patients remission of the
- lesions may result. In other cases the lesions have regressed to a less
- severe form. Use of sunscreen when the skin is exposed to sunlight is
- recommended. Repeated examinations of the moles is advisable in order to
- detect changes which may signal malignancy.
-
- Therapies: Investigational
-
- This disease entry is based upon medical information available through April
- 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 Dysplastic Nevus Syndrome, please contact:
-
- National Organization for Rare Disorders (NORD)
- P.O. Box 8923
- New Fairfield, CT 06812-1783
- (203) 746-6518
-
- Nevus Network
- 1400 S. Joyce St., #C1201
- Arlington, VA 22202
- (703) 920-2349
- (405) 377-3403
-
- Giant Congenital Pigmented Nevus Support Group
- 12 Twixt Hill Rd.
- Ridgefield, CT 06877
- (203) 438-3863
-
- Nevus Support Group
- 58 Necton Rd.
- Wheathampstead, Herts
- AL4 8AU England
-
- Skin Cancer Foundation
- 245 Fifth Avenue, Suite 2402
- New York, NY 10016
- (212) 725-5176
-
- Melanoma Foundation
- 750 Menlo Avenue, Suite 250
- Menlo Park, CA 94025
- (415) 326-3974
-
- American Cancer Society
- 1599 Clifton Rd., NE
- Atlanta, GA 30329
- (404) 320-3333
-
- NIH/National Cancer Institute
- 9000 Rockville Pike, Bldg. 31, Rm. 1A2A
- Bethesda, MD 20892
- 1-800-4-CANCER
-
- The National Cancer Institute has developed PDQ (Physician Data Query), a
- computerized database designed to give the public, cancer patients and
- families, and health professionals quick and easy access to many types of
- information vital to patients with this and many other types of cancer. To
- gain access to this service, call:
- Cancer Information Service (CIS)
- 1-800-4-CANCER
- In Washington, DC and suburbs in Maryland and Virginia, 636-5700
- In Alaska, 1-800-638-6070
- In Oahu, Hawaii, (808) 524-1234 (Neighbor islands call collect)
-
- For genetic information 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
-
- DYSPLASTIC NEVUS SYNDROME: ULTRAVIOLET HYPERMUTABILITY CONFIRMED IN VITRO BY
- ELEVATED SISTER CHROMATID EXCHANGES: E.G. Jung, et al.; Dermatologica (1986:
- issue 173(6)). Pp. 297-300
-
- ROLE OF TOPICAL TRETINOIN IN MELANOMA AND DYSPLASTIC NEVI: F.L. Meyskens
- Jr., et al.; Journal American Acad Dermatol (October 1986: issue 15(4 Pt 2)).
- Pp. 822-825.
-
- THE EFFICACY OF HISTOPATHOLOGICAL CRITERIA REQUIRED FOR DIAGNOSING
- DYSPLASTIC NAEVI: P.M. Steijlen, et al.; Histopathology (March 1988: issue
- 12(3)). Pp. 289-300.
-
- MENDELIAN INHERITANCE IN MAN, 8th ed.: Victor A. McKusick; Johns
- Hopkins University Press, 1988. Pp. 485-486.
-
-