Congenital microcephaly and chorioretinopathy due to de novo heterozygous KIF11 mutations: five novel mutations and review of the literature.

Journal Article (Journal Article;Review)

The microcephaly-lymphedema-chorioretinal dysplasia (MLCRD) syndrome is a distinct microcephaly syndrome. The hallmark features, microcephaly, chorioretinopathy, and lymphedema are frequently recognized at birth. Another clinical entity, the chorioretinal dysplasia, microcephaly and mental retardation syndrome (CDMMR) is a highly overlapping syndrome characterized by more variable lymphedema. Recently, heterozygous mutations in KIF11, a gene encoding a critical spindle motor protein of the Kinesin family, have been reported in individuals with MLCRD, and in individuals with CDMMR. This finding is suggestive of a single clinically variable spectrum. Here, we report on de novo novel mutations of KIF11 in five individuals with severe microcephaly, marked simplification of the gyral pattern on neuroimaging, bilateral chorioretinopathy, and developmental delay. Three patients had congenital lymphedema, and one had congenital bilateral sensorineural hearing loss. This report, therefore, further expands the clinical and molecular spectrum of KIF11-associated microcephaly.

Full Text

Duke Authors

Cited Authors

  • Mirzaa, GM; Enyedi, L; Parsons, G; Collins, S; Medne, L; Adams, C; Ward, T; Davitt, B; Bicknese, A; Zackai, E; Toriello, H; Dobyns, WB; Christian, S

Published Date

  • November 2014

Published In

Volume / Issue

  • 164A / 11

Start / End Page

  • 2879 - 2886

PubMed ID

  • 25115524

Pubmed Central ID

  • PMC4205200

Electronic International Standard Serial Number (EISSN)

  • 1552-4833

Digital Object Identifier (DOI)

  • 10.1002/ajmg.a.36707


  • eng

Conference Location

  • United States