Overview
Spondyloepiphyseal dysplasia, Omani type (also called SED Omani type) is an extremely rare inherited skeletal disorder that primarily affects the bones of the spine and the ends (epiphyses) of the long bones. This condition was first described in families from Oman, which is how it got its name. People with this condition typically have short stature due to abnormal growth of the spine and limbs. The spine may show flattened vertebrae (platyspondyly), and the joints can be affected by irregular development of the bone ends, which can lead to early-onset joint pain and stiffness. Key features of this condition include disproportionate short stature, where the trunk is shorter relative to the limbs, along with changes visible on X-rays of the spine and hips. Some individuals may develop a waddling gait, limited joint movement, and early degenerative joint disease (arthritis). The severity can vary between affected individuals, even within the same family. Because this is such a rare condition, there is no specific cure or targeted treatment available. Management focuses on supportive care, including orthopedic monitoring, physical therapy to maintain joint mobility, pain management, and surgical intervention when needed for severe skeletal complications. Regular follow-up with specialists familiar with skeletal dysplasias is important to monitor growth and manage complications as they arise.
Key symptoms:
Short statureShort trunk relative to limbsFlattened spinal vertebrae visible on X-rayJoint stiffnessEarly-onset joint pain or arthritisWaddling gaitLimited range of motion in hipsAbnormal development of the ends of long bonesCurved spine (scoliosis or kyphosis)Hip joint abnormalitiesDelayed growth in childhood
Autosomal recessive
Passed on when both parents carry the same gene change; often skips generations
Childhood
Begins in childhood, roughly ages 1 to 12
Treatments
No FDA-approved treatments are currently listed for Spondyloepiphyseal dysplasia, Omani type.
View clinical trials →Clinical Trials
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Specialists
View all specialists →No specialists are currently listed for Spondyloepiphyseal dysplasia, Omani type.
Treatment Centers
8 centersBaylor College of Medicine Rare Disease Center ↗
Baylor College of Medicine
📍 Houston, TX
🏥 NORDStanford Medicine Rare Disease Center ↗
Stanford Medicine
📍 Stanford, CA
🔬 UDNNIH Clinical Center Undiagnosed Diseases Program ↗
National Institutes of Health
📍 Bethesda, MD
🔬 UDNUCLA UDN Clinical Site ↗
UCLA Health
📍 Los Angeles, CA
🔬 UDNBaylor College of Medicine UDN Clinical Site ↗
Baylor College of Medicine
📍 Houston, TX
🔬 UDNHarvard/MGH UDN Clinical Site ↗
Massachusetts General Hospital
📍 Boston, MA
🏥 NORDMayo Clinic Center for Individualized Medicine ↗
Mayo Clinic
📍 Rochester, MN
👤 Mayo Clinic Center for Individualized Medicine
🏥 NORDUCLA Rare Disease Day Program ↗
UCLA Health
📍 Los Angeles, CA
Travel Grants
No travel grants are currently matched to Spondyloepiphyseal dysplasia, Omani type.
Community
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Caregiver Resources
NORD Caregiver Resources
Support, advocacy, and financial assistance for caregivers of rare disease patients.
Mental Health Support
Rare disease caregiving can be isolating. Connect with counseling and peer support.
Family & Caregiver Grants
Financial assistance programs specifically for caregivers of rare disease patients.
Social Security Disability
Learn how rare disease patients may qualify for SSDI/SSI benefits.
Questions for your doctor
Bring these to your next appointment
- Q1.What specific type of skeletal dysplasia does my child have, and how was the diagnosis confirmed?,Should we pursue genetic testing, and what would the results mean for our family?,What signs of complications should I watch for, especially related to the spine?,What types of physical activities are safe, and which should be avoided?,How often should we schedule follow-up X-rays and orthopedic visits?,Are there any clinical trials or research studies we could participate in?,What support services are available for managing daily life with this condition?
Common questions about Spondyloepiphyseal dysplasia, Omani type
What is Spondyloepiphyseal dysplasia, Omani type?
Spondyloepiphyseal dysplasia, Omani type (also called SED Omani type) is an extremely rare inherited skeletal disorder that primarily affects the bones of the spine and the ends (epiphyses) of the long bones. This condition was first described in families from Oman, which is how it got its name. People with this condition typically have short stature due to abnormal growth of the spine and limbs. The spine may show flattened vertebrae (platyspondyly), and the joints can be affected by irregular development of the bone ends, which can lead to early-onset joint pain and stiffness. Key features
How is Spondyloepiphyseal dysplasia, Omani type inherited?
Spondyloepiphyseal dysplasia, Omani type follows a autosomal recessive inheritance pattern. Genetic counseling can help families understand recurrence risk and testing options.
At what age does Spondyloepiphyseal dysplasia, Omani type typically begin?
Typical onset of Spondyloepiphyseal dysplasia, Omani type is childhood. Age of onset can vary across affected individuals.