SOPH Syndrome with Growth Hormone Deficiency, Normal Bone Age, and Novel Compound Heterozygous Mutations in NBAS

Short stature with optic atrophy and Pelger-Huet anomaly (SOPH; MIM 614800) syndrome is a genetic disease caused by mutation in the neuroblastoma amplified sequence (NBAS) gene.

We present a 11-year-old Chinese boy with SOPH syndrome, growth hormone deficiency with a normal bone age. Gene sequencing in the patient revealed a novel compound heterozygous mutation of c.5752A > C (Thr1918Pro) and c.500_501delTT (Phe167Cysfs*7) in the NBAS gene.

To our best knowledge, these novel mutations in the NBAS gene have not been reported. Normal bone age with growth hormone deficiency in this patient is different from the patients with SOPH syndrome that have been previously reported. These findings enrich the mutant spectrum of the NBAS gene and add our understanding of SOPH syndrome.