J Yeungnam Med Sci.  2025;42(1):15. 10.12701/jyms.2024.01137.

GMNN and DLL1 mutation-related spondylocarpotarsal synostosis: a case report

Affiliations
  • 1Department of Physical Medicine and Rehabilitation, Sahmyook Medical Center, Seoul, Korea
  • 2Department of Physical Medicine and Rehabilitation, Loving Care Clinic, Seongnam, Korea

Abstract

Spondylocarpotarsal synostosis syndrome (SCTS) is a rare genetic disorder characterized by vertebral fusion, short stature, and skeletal anomalies. SCTS is primarily associated with mutations in filamin B. However, in this report, we present a unique case of SCTS in a 28-year-old male who complained of neck and shoulder pain persisting for 1 year. His clinical presentation included radioulnar synostosis, cervical spine anomalies (scoliosis and agenesis of the posterior arch of C1), and a history of polydactyly. Genetic analysis revealed mutations in GMNN and DLL1. To the best of our knowledge, this is the first report on the association of SCTS with these genes.

Keyword

Cervical vertebrae; Radioulnar synostosis; Spondylocarpotarsal synostosis
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