Care
Understanding ZTTK
Learn about ZTTK syndrome, the SON gene, and what it means for your family.
Newly Diagnosed
Just received a ZTTK diagnosis? Start here for guidance, resources, and community.
What is ZTTK?
An overview of Zhu-Tokita-Takenouchi-Kim syndrome — causes, prevalence, and outlook.
The SON Gene
Understanding the SON gene mutation at the heart of ZTTK syndrome.
Symptoms & Diagnosis
Common features, diagnostic criteria, and what to expect from genetic testing.
ZTTK By The Numbers
Key statistics on the ZTTK community — diagnosed cases, countries, and research milestones.
Clinical Care
Medical guidance, care coordination, and specialist referrals for families.
For Clinicians
Clinical features by body system, diagnostic resources, and collaboration opportunities for healthcare providers.