1. EML1-associated brain overgrowth syndrome with ribbon-like heterotopia
- Author
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Oegema, R. (Renske), McGillivray, G. (George), Leventer, R.J. (Richard), Le Moing, A.-G. (Anne-Gaëlle), Bahi-Buisson, N. (Nadia), Barnicoat, A. (Angela), Mandelstam, S. (Simone), Francis, D. (David), Francis, F. (Fiona), Mancini, G.M.S. (Grazia), Savelberg, S.M.C. (Sanne M.C.), Haaften, G. (Gijs) van, Mankad, K. (Kshitij), Leguin, M. (Maarten), Oegema, R. (Renske), McGillivray, G. (George), Leventer, R.J. (Richard), Le Moing, A.-G. (Anne-Gaëlle), Bahi-Buisson, N. (Nadia), Barnicoat, A. (Angela), Mandelstam, S. (Simone), Francis, D. (David), Francis, F. (Fiona), Mancini, G.M.S. (Grazia), Savelberg, S.M.C. (Sanne M.C.), Haaften, G. (Gijs) van, Mankad, K. (Kshitij), and Leguin, M. (Maarten)
- Abstract
EML1 encodes the protein Echinoderm microtubule-associated protein-like 1 or EMAP-1 that binds to the microtubule complex. Mutations in this gene resulting in complex brain malformations have only recently been published with limited clinical descriptions. We provide further clinical and imaging details on three previously published families, and describe two novel unrelated individuals with a homozygous partial EML1 deletion and a homozygous missense variant c.760G>A, p.(Val254Met), respectively. From review of the clinical and imaging data of eight individuals from five families with biallelic EML1 variants, a very consistent imaging phenotype emerges. The clinical syndrome is characterized by mainly neurological features including severe developmental delay, drug-resistant seizures and visual impairment. On brain imaging there is megalencephaly with a characteristic ribbo
- Published
- 2019
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