Journal of Genetic Medicine

Korean Society of Medical Genetics and Genomics (대한의학유전학회)
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Shprintzen-Goldberg syndrome with a novel missense mutation of SKI in a 6-month-old boy

  • Jeon, Min Jin (Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine) ;
  • Park, Seul Gi (Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine) ;
  • Kim, Man Jin (Rare Disease Center, Seoul National University Hospital) ;
  • Lim, Byung Chan (Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine) ;
  • Kim, Ki Joong (Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine) ;
  • Chae, Jong Hee (Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine) ;
  • Kim, Soo Yeon (Department of Pediatrics, Seoul National University Children's Hospital, Seoul National University College of Medicine)
  • Received : 2020.04.03
  • Accepted : 2020.05.11
  • Published : 2020.06.30
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Abstract

The Shprintzen-Goldberg syndrome (SGS) is an extremely rare genetic disorder caused by heterozygous variant in SKI. SGS is characterized by neurodevelopmental impairment with skeletal anomaly. Recognition of SGS is sometimes quite challenging in practice because it has diverse clinical features involving skeletal, neurological, and cardiovascular system. Here we report a case of a 6-month-old boy who initially presented with developmental delay and marfanoid facial features including prominent forehead, hypertelorism, high arched palate and retrognathia. He showed motor developmental delay since birth and could not control his head at the time of first evaluation. His height was above 2 standard deviation score. Arachnodactyly, hypermobility of joints, skin laxity, and pectus excavatum were also noted. Sequencing for FBN1 was negative, however, a novel missense variant, c.350G>A in SKI was identified by sequential whole exome sequencing. To our knowledge, this is the first case with SGS with phenotypic features of SGS overlapping with those of the Marfan syndrome, diagnosed by next generation sequencing in Korea.

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References

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