RT Journal Article SR Electronic T1 Neonatal Alexander Disease: MR Imaging Prenatal Diagnosis JF American Journal of Neuroradiology JO Am. J. Neuroradiol. FD American Society of Neuroradiology SP 1973 OP 1975 DO 10.3174/ajnr.A1215 VO 29 IS 10 A1 Vázquez, E. A1 Macaya, A. A1 Mayolas, N. A1 Arévalo, S. A1 Poca, M.A. A1 Enríquez, G. YR 2008 UL http://www.ajnr.org/content/29/10/1973.abstract AB SUMMARY: Alexander disease (AD) is a rare neurodegenerative disorder characterized by megalencephaly, leukoencephalopathy, and Rosenthal fibers within astrocytes. This report describes the case of a female patient with sonography-detected ventriculomegaly at 32 weeks’ gestation and distinctive MR imaging features at 33 and 36 weeks’ gestation, at birth, and at 2 months of age, which led to the suggested diagnosis of Alexander disease. Molecular analysis confirmed a missense mutation in the GFAP gene. The literature contains little information on the fetal MR imaging findings that may allow prenatal diagnosis of AD.