Septopreoptic holoprosencephaly: A mild subtype associated with midline craniofacial anomalies

Jin S. Hahn, P. D. Barnes, N. J. Clegg, E. E. Stashinko

Research output: Contribution to journalArticlepeer-review

Abstract

HPE is a congenital brain malformation characterized by failure of the prosencephalon to divide into 2 hemispheres. We have identified 7 patients who have a mild subtype of HPE in which the midline fusion was restricted to the septal region or preoptic region of the telencephalon. This subtype, which we call septopreoptic HPE, falls in the spectrum of lobar HPE, but lacks significant frontal neocortical fusion seen in lobar HPE. Other imaging characteristics include thickened or dysplastic fornix, absent or hypoplastic anterior CC, and single unpaired ACA. The SP was fully formed in 4, partially formed in 2, and absent in 1. Mild midline craniofacial malformation, such as SMMCI and CNPAS were found in 86% and 71%, respectively. Patients outside of infancy often manifested language delay, learning disabilities, or behavioral disturbances, while motor function was relatively spared.

Original languageEnglish (US)
Pages (from-to)1596-1601
Number of pages6
JournalAmerican Journal of Neuroradiology
Volume31
Issue number9
DOIs
StatePublished - Oct 2010
Externally publishedYes

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Clinical Neurology

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