Short answer · Medically reviewed summary · Last updated: 2026-05-08
Spondyloepiphyseal dysplasia tarda (SEDT), also known as X-linked spondyloepiphyseal dysplasia tarda, is a rare genetic skeletal disorder characterized by the late onset of short stature and degenerative joint disease. Because medical terminology has evolved over decades, patients may encounter this condition under various synonyms, though spondyloepiphyseal dysplasia tarda remains the standard clinical term used by specialists today. What are the common synonyms and historical names for Spondyloepiphyseal Dysplasia Tarda? Medical literature often refers to spondyloepiphyseal dysplasia tarda using nomenclature that reflects its X-linked inheritance pattern or its radiographic appearance.
Spondyloepiphyseal Dysplasia Tarda synonyms
Other names for Spondyloepiphyseal Dysplasia Tarda: synonyms, acronyms and related terms used by doctors and patients.
Spondyloepiphyseal dysplasia tarda (SEDT), also known as X-linked spondyloepiphyseal dysplasia tarda, is a rare genetic skeletal disorder characterized by the late onset of short stature and degenerative joint disease. Because medical terminology has evolved over decades, patients may encounter this condition under various synonyms, though spondyloepiphyseal dysplasia tarda remains the standard clinical term used by specialists today.
What are the common synonyms and historical names for Spondyloepiphyseal Dysplasia Tarda?
Medical literature often refers to spondyloepiphyseal dysplasia tarda using nomenclature that reflects its X-linked inheritance pattern or its radiographic appearance. Historical terms such as "Maroteaux-Lamy syndrome" (not to be confused with the mucopolysaccharidosis type VI of the same name) and "X-linked spondyloepiphyseal dysplasia" appear in older clinical journals. In international coding, it is officially classified in the OMIM database as SEDT (OMIM #313400) and is recognized in Orphanet as ORPHA:3297.
Why does Spondyloepiphyseal Dysplasia Tarda have multiple names?
The existence of multiple names for spondyloepiphyseal dysplasia tarda is primarily due to the historical evolution of clinical genetics. Before the specific TRAPPC2 gene mutation was identified, the condition was often categorized based solely on observed physical traits. As genetic testing became the gold standard, the medical community moved toward the current, more descriptive terminology to distinguish spondyloepiphyseal dysplasia tarda from other forms of skeletal dysplasias that present earlier in life.
How is the condition classified in medical databases?
To ensure clarity in medical records, clinicians rely on standardized nomenclature. Key identifiers for spondyloepiphyseal dysplasia tarda include:
- OMIM: #313400 (X-linked Spondyloepiphyseal Dysplasia Tarda)
- Orphanet: ORPHA:3297
- ICD-10/11: Q77.7 (Spondyloepiphyseal dysplasia)
Next steps for patients and families
- Consult with a clinical geneticist to confirm the specific TRAPPC2 mutation.
- Connect with the 11 community members on DiseaseMaps.org who are living with spondyloepiphyseal dysplasia tarda to share experiences.
- Request that your healthcare provider use the term "X-linked spondyloepiphyseal dysplasia tarda" in your formal medical records to ensure accurate billing and insurance coverage.
Medical disclaimer: This information is for educational purposes only and does not constitute medical advice, diagnosis, or treatment; always consult with a qualified healthcare provider regarding your specific health needs.
References
- NIH Genetic and Rare Diseases Information Center (GARD): Spondyloepiphyseal dysplasia tarda.
- Online Mendelian Inheritance in Man (OMIM): Entry #313400.
- Orphanet: ORPHA:3297 (Spondyloepiphyseal dysplasia tarda).
- DiseaseMaps.org: Community patient data and rare disease registry.
