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Copyright 1997, 1998, 1999, 2006, 2009
NORD is very grateful to Dr. Muriel Holder-Espinasse, Service de Génétique Clinique, Hôpital Jeanne de Flandre, France, for assistance in the preparation of this report.
Synonyms of Three M Syndrome
- 3@M Syndrome
- Dolichospondylic Dysplasia
- Gloomy Face Syndrome
- Le Merrer Syndrome
- Three-M Slender-Boned Nanism (3-MSBN)
Disorder Subdivisions
General Discussion
Three M syndrome is an extremely rare genetic disorder characterized by low birth weight, short stature (dwarfism), characteristic abnormalities of the head and facial (craniofacial) area, distinctive skeletal malformations, and/or other physical abnormalities. The name "three M" refers to the last initials of three researchers (J.D. Miller, V.A. McKusick, P. Malvaux) who were among the first to identify the disorder. Characteristic craniofacial malformations typically include a long, narrow head (dolichocephaly), an unusually prominent forehead (frontal bossing), and a triangular-shaped face with a prominent, pointed chin, large ears, and/or abnormally flat cheeks. In addition, in some affected children, the teeth may be abnormally crowded together; as a result, the upper and lower teeth may not meet properly (malocclusion). Skeletal abnormalities associated with the disorder include unusually thin bones, particularly the shafts of the long bones of the arms and legs (diaphyses); abnormally long, thin bones of the spinal column (vertebrae); and/or distinctive malformations of the ribs and shoulder blades (scapulae). Affected individuals may also have additional abnormalities including permanent fixation of certain fingers in a bent position (clinodactyly), unusually short fifth fingers, and/or increased flexibility (hyperextensibility) of the joints. The range and severity of symptoms and physicial features may vary from case to case. Intelligence appears to be normal. Three M syndrome is thought to be inherited as an autosomal recessive genetic trait.
Organizations related to Three M Syndrome
- Children's Craniofacial Association
13140 Coit Road
Suite 517
Dallas TX 75240
Phone #: 214-570-9099
800 #: 800-535-3643
e-mail: contactCCA@ccakids.com
Home page: http://www.ccakids.com
- Craniofacial Foundation of America
975 East Third Street
Chattanooga TN 37403
Phone #: 423-778-9176
800 #: 800-418-3223
e-mail: info@craniofacialfoundation.org
Home page: http://www.craniofacialfoundation.org/www
- Genetic and Rare Diseases (GARD) Information Center
PO Box 8126
Gaithersburg MD 20898-8126
Phone #: 301-251-4925
800 #: 888-205-2311
e-mail: ordr@od.nih.gov
Home page: http://rarediseases.info.nih.gov/Default.aspx
- Little People of America, Inc.
250 El Camino Real
Suite 201
Tustin CA 92780
Phone #: 714-368-3689
800 #: 888-572-2001
e-mail: info@lpaonline.org
Home page: http://www.lpaonline.org
- MAGIC Foundation
6645 W. North Avenue
Oak Park IL 60302
Phone #: 708-383-0808
800 #: 800-362-4423
e-mail: mary@magicfoundation.org
Home page: http://www.magicfoundation.org
- March of Dimes Birth Defects Foundation
1275 Mamaroneck Avenue
White Plains NY 10605
Phone #: 914-997-4488
800 #: 888-663-4637
e-mail: Askus@marchofdimes.com
Home page: http://www.marchofdimes.com
- NIH/National Arthritis and Musculoskeletal and Skin Diseases Information Clearinghouse
1 AMS Circle
Bethesda MD 20892-3675
Phone #: 301-495-4484
800 #: 877-226-4267
e-mail: NIAMSinfo@mail.nih.gov
Home page: http://www.niams.nih.gov/Health_Info
- Restricted Growth Association
RGA Office
PO Box 1024
PETERBOROUGH Intl PE1 9GX
Phone #: 017-33 -759458
800 #: --
e-mail: N/A
Home page: http://www.restrictedgrowth.co.uk
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