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Living with Spondyloepimetaphyseal dysplasia, Shohat type

A rare bone condition with very short stature, short limbs, a small chest, and loose joints.

Understanding Spondyloepimetaphyseal dysplasia, Shohat type

Spondyloepimetaphyseal dysplasia, Shohat type is a rare bone condition with severely disproportionate short stature.

Limbs are short, the chest is small, and the neck is short. People may have a strong inward curve of the lower back, bowed legs, loose joints, and a swollen belly. The liver and spleen may be mildly enlarged. Signs may begin during pregnancy, at birth, or in infancy.

Signs & symptoms

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

  • Severe short stature with short limbs
  • Small chest
  • Flattened spine bones (platyspondyly)
  • Curved spine (scoliosis)
  • Joint pain and early arthritis
  • Thin bones (bone demineralization)

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 bone and joint specialists and genetic specialists.

  3. Consider genetic testing

    Changes in DDRGK1 are linked to this condition. Genetic testing and counseling can help confirm a diagnosis and explain what it means for your family.

Care & treatment

Care team
Bone and joint specialists (orthopedists or orthopedic surgeons); 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 Kniest SED Group
  • 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 can we monitor my child's chest and breathing?
Does the enlarged liver or spleen need checks?
Would DDRGK1 gene testing help our family?

Quick facts

Symptoms usually startduring Pregnancy, at Birth, and as an Infant
InheritanceAutosomal Recessive
GenesDDRGK1

Changes in the DDRGK1 gene cause this condition. It is autosomal recessive, meaning a child inherits a changed copy of the gene from each parent.

Genetic

Also known as: semd shohat type; semd, shohat type; spondyloepimetaphyseal dysplasia shohat type

Patient organizations

Source: NIH GARD · Spondyloepimetaphyseal dysplasia, Shohat typeGARD ID 4980 · 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 Spondyloepimetaphyseal dysplasia, Shohat type.

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Explore actively recruiting Spondyloepimetaphyseal dysplasia, Shohat type 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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