Expanded clinical spectrum of spondylocarpotarsal synostosis syndrome and possible manifestation in a heterozygous father.

Abstract

We report on a 5-year-old boy with spondylocarpotarsal synostosis (SCT) syndrome who presents with disproportionate short stature, thoracic scoliosis, pes planus, dental enamel hypoplasia, unilateral conductive hearing loss and mild facial dysmorphisms. Radiographs showed abnormal segmentation of the spine with block vertebrae and carpal synostosis. In addition to the typical phenotype of SCT syndrome, he showed pronounced delay of carpal bone age and bilateral epiphyseal dysplasia of the proximal femora. The patient's father has mild short stature and unilateral hip dysplasia. Molecular studies of the filamin B gene (FLNB) revealed a homozygous mutation in the index patient while both parents were heterozygous for the mutation. In this report we expand the phenotype of SCT syndrome in a patient with a causal FLNB mutation.

• Authors: Diana Mitter, Deborah Krakow, Claire Farrington-Rock, Peter Meinecke
• Journal: American journal of medical genetics. Part A (Am J Med Genet A) Vol. 146A Issue 6 Pg. 779-83 (Mar 15 2008) ISSN: 1552-4833 [Electronic] United States
• PMID: 18257094 (Publication Type: Case Reports, Journal Article)
• Copyright: (c) 2008 Wiley-Liss, Inc.

Chemical References

• Contractile Proteins
• FLNB protein, human
• Filamins
• Microfilament Proteins

Topics

• Adult
• Bone and Bones (abnormalities)
• Child
• Contractile Proteins (genetics)
• Fathers
• Filamins
• Growth Disorders (etiology, genetics)
• Heterozygote
• Humans
• Inheritance Patterns
• Male
• Microfilament Proteins (genetics)
• Phenotype
• Spine (abnormalities)
• Syndrome
• Synostosis (complications, genetics)