Trisomy 13 is a condition in which a baby has an extra chromosome, chromosome 13.
In individuals with trisomy 13, the range of associated symptoms and findings may depend on the specific location of the duplicated portion of chromosome as well as the percentage of cells containing the duplication.
Trisomy 13 causes severe intellectual disability and many physical abnormalities, such as congenital heart defects; brain or spinal cord abnormalities; very small or poorly developed eyes (microphthalmia); extra fingers or toes; cleft lip with or without cleft palate; and weak muscle tone (hypotonia).
Resources
National Organization for Rare Disorders (NORD) is a non-profit patient advocacy organization dedicated to individuals with rare diseases and the organizations that serve them.
Bright Expectations
Find information on evaluation and intervention services, support programs for families, resources for health care providers, and information on developmental disabilities