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Living with Von Voss-Cherstvoy syndrome

A very rare condition present at birth with short or missing arms, brain differences, and low platelets.

Understanding Von Voss-Cherstvoy syndrome

Von Voss-Cherstvoy syndrome is a very rare condition with shortened or absent arms, brain sac-like protrusions, and low platelets.

GARD lists shortened or absent arms (phocomelia), an encephalocele (brain tissue pushing through an opening in the skull), brain and urogenital differences, and low platelets (thrombocytopenia). Intellectual development is usually normal. As of May 2010, fewer than 15 cases had been reported.

Signs & symptoms

Symptoms vary from person to person. GARD lists these among the most common:

  • Short or missing arms (phocomelia)
  • Underdeveloped forearm bone (radius)
  • Brain tissue pushing out the back of the skull
  • Missing or small brain connection (corpus callosum)
  • Low platelet count
  • Developmental and speech delay

Not everyone has every symptom. GARD's list comes from the Human Phenotype Ontology.

Diagnosis

  1. Talk with your doctor

    Share the symptoms you've noticed, when they started and your family health history. Notes and photos can help.

  2. See a specialist

    Specialists who may be involved include genetic specialists.

  3. Ask which tests can help

    Your care team will decide which exams and tests can confirm the diagnosis.

Care & treatment

Care team
Genetic specialists (geneticists)
Expert care
Ask about multidisciplinary care centers for rare conditions
Treatment
GARD doesn't list specific treatments for this condition. Your care team will tailor care to your symptoms.
Research
Clinical trials and observational studies may be options. See the research section below.

General information, not medical advice. Your care team makes the decisions.

Everyday life

Living with a rare condition is easier with support.

  • Connect with rare disease patient organizations for support
  • Keep notes on symptoms, changes and questions for appointments
  • Ask about patient registries that help research
  • Look into financial aid and travel resources for care visits
Bring these questions to your next doctor visit
How are the low platelets monitored?
Which specialists should be on my child's care team?
Is genetic counseling available for our family?

Quick facts

Symptoms usually startduring Pregnancy, at Birth, and as an Infant
InheritanceAutosomal Recessive

GARD says the exact cause is unknown, but autosomal recessive inheritance has been suggested.

Genetic

Also known as: dk phocomelia syndrome; phocomelia-thrombocytopenia-encephalocele-urogenital malformations syndrome; phocomelia, thrombocytopenia, encephalocele and urogenital malformation syndrome; phocomelia, thrombocytopenia, encephalocele, urogenital malformations

Patient organizations

Rare-disease groups that can help

Source: NIH GARD · Von Voss-Cherstvoy syndromeGARD ID 1894 · GARD page updated September 2026 · Plain-language summary by Know Rare; editorial review pending. General information, not medical advice.

You are more than your diagnosis

Perspectives from people navigating life with Von Voss-Cherstvoy syndrome.

Explore the Von Voss-Cherstvoy syndrome blog

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Explore actively recruiting Von Voss-Cherstvoy syndrome studies with HealthSpark.

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  • Recruiting studies from ClinicalTrials.gov
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  • Eligibility is confirmed by the study team

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