1. Parenting
You can opt-out at any time. Please refer to our privacy policy for contact information.

Discuss in my forum

What Is Phelan-McDermid Syndrome?


Looking for Answers
Sarah K. Lee


Phelan-McDermid Syndrome, also known as 22q13 Deletion Syndrome, occurs when genes are missing from the tip of the 22nd chromosome. Children with Phelan-McDermid may have very low muscle tone, delays in motor skills and speech, distinctive facial features, and minor physical abnormalities.

Get more information.


Also Known As: 22q13 Deletion Syndrome

©2014 About.com. All rights reserved.