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Support for Disorders of
Chromosome 22

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Alex, 6 years
Mosaic Ring Chromosome 22


Anthony, 20 years
Mosaic Trisomy 22


Bella, 18 months
22q11 Deletion


Chrystal, age 2
Cat Eye Syndrome


Taylor, age 15
Schmid-Fraccaro Syndrome


Nikki, age 17
Emanuel Syndrome


Chromosome 22 Central is a parent run support organization. We started in 1997 with just a handful of families who had children with what is now known as Emanuel Syndrome, and now we support over 2000 families in all corners of the world, who have many different chromosome 22 disorders.

When we started out, the Internet was in its infancy, and we connected mainly by email lists. With social networking today, it is so easy to go on-line and instantly find supportive families who can help you.

Our group offers basic information on the main chromosome 22 disorders here on our website, but mostly we are about connecting and learning from each other on Facebook. You'd be amazed what parents can learn from each other. We have a wealth of information between us all.

We also are happy to advertise studies from researchers. You can click on the top tab to see which current studies you might be able to participate in.

We receive no formal funding to support this website. All of our support comes from the generosity of our members.

About Stephanie St-Pierre, Founder:

stephIn 1995, Maia was born to Stephanie and husband Martin after 4 miscarriages, and diagnosed with what is now called Emanuel Syndrome. Stephanie found out she carried the balanced 11/22 translocation. C22C stemmed from her search to find others and help gather information on the condition, and she began Chromosome 22 Central shortly thereafter in Canada. Our office is now based in the United States. Stephanie maintains c22c.org, the group's database of members, and continues to field inquiries.

Stephanie and Martin also have two younger children, adopted from China, and live in Timmins, Ontario. Stephanie has a Bachelor's Degree in Social Development Studies from the University of Wateroo as well as an Honours Bachelor Degree in Social Work from Algoma University. She works in the field of mental health. She also volunteers her time to local agencies that support her daughter Maia.

View Stephanie St-Pierre's profile on LinkedIn

info @ c22c.org (remove spaces)

About Murney Rinhom, President:

murneyMurney Rinholm has been president of Chromosome 22 Central (USA) since 2002.  She is mother to Atle Rinholm, age 18, with Emanuel Syndrome.   She lives in Fuquay Varina, North Carolina with her family and is originally from Saskatoon, Sk, Canada where she obtained her Bachelor’s Degree in Education.  She currently works as a paralegal specializing in estates and guardianships.  She has also served as a parent & family advocate for the State of North Carolina’s Office of Emergency Medical Services.  Atle attends high school and enjoys horseback riding and miracle league baseball. 

usinfo @ c22c.org (remove spaces)

About Dr. Melissa Carter, Medical Advisor:

dr carterMelissa Carter, M.D. is a Clinical Geneticist specializing in Developmental Disabilities. She works out of the Children's Hospital of Eastern Ontario, in Ottawa, Ontario. Her clinical and research interests include chromosomal causes of developmental disabilities and autism. She completed her medical training at McMaster University in Hamilton, Ontario, Clinical Genetics residency at the Children's Hospital of Eastern Ontario in Ottawa, and Developmental Pediatrics fellowship training at Holland Bloorview Kids Rehabilitation Hospital and Sick Kids in Toronto. 

Dr. Carter became interested in Emanuel syndrome when she was a resident in Clinical Genetics. One of her patients was a young girl with ES, and faced with limited and outdated medical literature on the topic, she turned to Stephanie St-Pierre for information. What followed was a wonderful partnership with C22C, which produced the largest study of individuals with Emanuel syndrome to date, as well as a paper investigating the proposed link between carrying the 11;22 translocation and breast cancer. Dr. Carter plans to continue studying the developmental outcomes in children with chromosome disorders, in particular those affecting chromosome 22. 


mcarter @ cheo.on.ca (remove spaces)