Radioulnar Synostosis and Brain Abnormalities in a Patient with 17q21.31 Microdeletion Involving EFTUD2. (March 2015)

• Record Type: Journal Article
• Authors: Zarate, Yuri A.; Bell, Carla; Schaefer, G. Bradley
• Is Part Of: Cleft palate-craniofacial journal. Volume 52:Number 2(2015)
• Page Start: 237
• Page End: 239
• Publication Date: 2015-03
• Subjects: 17q21.31 microdeletion -- EFTUD2 -- mandibulofacial dysostosis -- spliceosome; Cleft palate -- Periodicals; Skull -- Abnormalities -- Periodicals; Cranial manipulation -- Periodicals; Skull -- Abnormalities -- Surgery -- Periodicals; Face -- Abnormalities -- Surgery -- Periodicals; Fente palatine -- Périodiques; Crâne -- Malformations -- Périodiques; Manipulation crânienne -- Périodiques; Crâne -- Malformations -- Chirurgie -- Périodiques; Face -- Malformations -- Chirurgie -- Périodiques; Cleft palate; Cranial manipulation; Face -- Abnormalities -- Surgery; Skull -- Abnormalities; Skull -- Abnormalities -- Surgery; Cleft Lip; Cleft Palate; Facial Bones -- abnormalities; Skull -- abnormalities; Periodicals; Periodicals; Periodicals; 617.522
• DOI: 10.1597/13-221
• Languages: English
• ISSNs: 1055-6656

Abstract

Mandibulofacial dysostosis with microcephaly is a rare syndromic craniofacial condition caused by heterozygous loss-of-function mutations of the EFTUD2 gene on 17q21.31. Thus far, the described musculoskeletal findings in patients with this condition include proximally placed or duplicated thumbs, overlapping toes, and toe syndactyly. We describe a severe case of a patient with a 17q21.31 microdeletion and many of the phenotypic features described in mandibulofacial dysostosis with microcephaly who had bilateral proximal radioulnar synostosis and brain abnormalities. This provides further evidence of the clinical overlap among mandibulofacial and acrofacial dysostoses syndromes and expands the phenotype of EFTUD2 haploinsufficiency due to larger deletions.