This information is provided by the National Institutes of Health (NIH) Genetic and Rare Diseases Information Center (GARD).
Potocki-Lupski syndrome (PTLS) is a genetic disorder characterized by the presence of an extra copy of a tiny portion of chromosome 17 (duplication of 17p11.2). People with this duplication often have some degree of developmental delay (primarily speech delay), low muscle tone, poor feeding, and failure to thrive during infancy. In addition, many individuals display some behaviors commonly associated with autism spectrum disorders. Some people with PTLS have a heart defect. While most cases of PTLS occur sporadically, in rare cases, it may be inherited. Treatment involves physical, occupational, and speech therapy, and/or medical or surgical treatment for heart defects.
For more information, visit GARD.