1. Parenting
Send to a Friend via Email

Your suggestion is on its way!

An email with a link to:


was emailed to:

Thanks for sharing About.com with others!

Discuss in my forum

Phelan-McDermid Syndrome



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.