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Features include very common findings: Intellectual disability; and common findings: Attention deficit hyperactivity disorder. 37 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Head and neck | 4 | High palate, Submucous cleft hard palate, Long face |
SOX6 function has not been fully characterized.
Tolchin-Le Caignec syndrome is associated with mutations in the SOX6 gene on chromosome 11.
Genetic testing for SOX6 is available. Testing is considered confirmatory for diagnosis.
Phenotype severity distribution: 1 very common feature, 1 common feature.
No clinical trials have been registered for Tolchin-Le Caignec syndrome.
8 publications have been identified in PubMed for Tolchin-Le Caignec syndrome. Kisho has analyzed 5 by research type. Research spans Case Report / Case Series (60%), Review / Meta-Analysis (20%), and Epidemiology / Natural History (20%).
Kolkiran A (2026). [PMID: 41795723](https://pubmed.ncbi.nlm.nih.gov/41795723/). *European journal of pediatrics*. [Case Report / Case Series]
Serra G (2025). [PMID: 39985057](https://pubmed.ncbi.nlm.nih.gov/39985057/). *Italian journal of pediatrics*. [Case Report / Case Series]
Iwata-Otsubo A (2025). [PMID: 40004465](https://pubmed.ncbi.nlm.nih.gov/40004465/). *Genes*. [Case Report / Case Series]
Avci Durmusalioglu E (2025). [PMID: 40459271](https://pubmed.ncbi.nlm.nih.gov/40459271/). *American journal of medical genetics. Part A*. [Epidemiology / Natural History]
He D (2024). [PMID: 39135054](https://pubmed.ncbi.nlm.nih.gov/39135054/). *Orphanet journal of rare diseases*. [Review / Meta-Analysis]
Data assembled from 5 of 12 sources · Last updated Sep 19, 2026, 9:41 PM UTC
Online Mendelian Inheritance in Man
Genetic and Rare Diseases Info Center
Common questions about Tolchin-Le Caignec syndrome
3 |
Intellectual disability, Global developmental delay, Autistic behavior |
Ears | 2 | Abnormal vestibular function, Inner ear hearing loss (sensorineural hearing impairment) |
Bones and joints | 1 | Osteochondroma |
Heart and blood vessels | 1 | Cardiac rhabdomyoma |
Hormones | 1 | Precocious puberty |
Arms and legs | 1 | Clinodactyly of the 5th finger |