Short answer · Medically reviewed summary · Last updated: 2026-05-08
Cohen Syndrome is a rare genetic disorder characterized by a combination of developmental delay, intellectual disability, microcephaly, and distinctive facial features. Diagnosis is confirmed through genetic testing for mutations in the VPS13B gene, which is the only known cause of this condition. What are the key clinical signs of Cohen Syndrome? Individuals with Cohen Syndrome typically present with a specific cluster of symptoms that appear in early childhood.
2 people with Cohen Syndrome have shared their first-person experience on this question at DiseaseMaps.
How do I know if I have Cohen Syndrome?
Could you have Cohen Syndrome? Early signs that prompted real patients to seek diagnosis, plus medically reviewed guidance.
Cohen Syndrome is a rare genetic disorder characterized by a combination of developmental delay, intellectual disability, microcephaly, and distinctive facial features. Diagnosis is confirmed through genetic testing for mutations in the VPS13B gene, which is the only known cause of this condition.
What are the key clinical signs of Cohen Syndrome?
Individuals with Cohen Syndrome typically present with a specific cluster of symptoms that appear in early childhood. While every person’s experience is unique, the clinical presentation often includes:
- Developmental delays: Significant delays in motor skills and speech.
- Facial features: A high-arched palate, short philtrum, and down-slanting eyes.
- Ocular issues: Progressive high myopia (nearsightedness) and retinal dystrophy.
- Physical traits: Microcephaly (small head size) and slender hands and feet.
- Neutropenia: A low count of a specific type of white blood cell, which may increase susceptibility to infections.
How is a diagnosis of Cohen Syndrome confirmed?
If you suspect you or a family member has Cohen Syndrome, the first step is consulting a clinical geneticist. Because many of these symptoms overlap with other neurodevelopmental disorders, a physical examination alone is insufficient. A diagnosis is established via molecular genetic testing, specifically sequencing the VPS13B gene. Currently, 118 members of the DiseaseMaps.org community have shared their experiences, which can be an invaluable resource for understanding the daily realities of living with Cohen Syndrome.
When should I see a specialist?
You should prioritize a medical evaluation if there is a combination of intellectual disability and progressive vision loss, as these are hallmark features of Cohen Syndrome. If your primary care provider is unfamiliar with this rare condition, provide them with clinical literature from NIH GARD or Orphanet. If you feel dismissed, request a referral to a tertiary care center or a genetics department that specializes in rare pediatric syndromes.
Next steps
- Schedule an appointment with a clinical geneticist to discuss VPS13B gene testing.
- Consult an ophthalmologist to evaluate for retinal dystrophy or high myopia.
- Connect with the 118 members on DiseaseMaps.org to share experiences and find emotional support.
- Request a complete blood count (CBC) to check for neutropenia, a common finding in Cohen Syndrome.
Medical disclaimer: This information is for educational purposes only and does not replace professional medical advice, diagnosis, or treatment.
References
- NIH Genetic and Rare Diseases Information Center (GARD): Cohen Syndrome Overview.
- Orphanet: Rare Disease Database (ORPHA:193).
- OMIM (Online Mendelian Inheritance in Man): Entry #216550 (Cohen Syndrome).
- PubMed: Clinical and genetic spectrum of VPS13B-related disorders.
Posted Sep 8, 2017 by Melodie 2000
Posted Sep 8, 2017 by Emme 1800
