Novel VPS33B mutation in a patient with autosomal recessive keratoderma-ichthyosis-deafness syndrome

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

Autosomal recessive keratoderma-ichthyosis-deafness (ARKID) syndrome is a rare multisystem disorder caused by biallelic mutations in VPS33B; only three patients have been reported to date. ARKID syndrome is allelic to arthrogryposis-renal dysfunction-cholestasis (ARC) syndrome (MIM #208085), a severe disorder with early lethality whose phenotypic characteristics also include ichthyosis, hearing loss, severe failure to thrive, platelet dysfunction and osteopenia. We report on an 11-year-old male patient with ARKID syndrome and compound heterozygous VPS33B mutations, one of which [c.1440delG; p.(Arg481Glyfs*11)] was novel. Clinical features of this patient included ichthyosis, palmoplantar keratosis, hearing loss, intellectual disability, unilateral hip dislocation, microcephaly and short stature. He also had copper hepatopathy and exocrine pancreatic insufficiency, features that have so far been associated with neither ARKID nor ARC syndrome. The patient broadens the clinical and molecular spectrum of ARKID syndrome and contributes to genotype–phenotype associations of this rare disorder.

Details

Original languageEnglish
Pages (from-to)2862-2866
Number of pages5
JournalAmerican Journal of Medical Genetics, Part A
Volume176
Issue number12
Publication statusPublished - Dec 2018
Peer-reviewedYes

External IDs

PubMed 30561130

Keywords

ASJC Scopus subject areas

Keywords

  • arthrogryposis-renal dysfunction-cholestasis syndrome, autosomal recessive keratoderma-ichthyosis-deafness syndrome, copper hepatopathy, VPS33B