Diffuse hypomyelination is not obligate for POLR3-related disorders

Roberta La Piana¹, Ferdy K Cayami¹, Luan T Tran¹+18

• ¹From the Laboratory of Neurogenetics of Motion (R.L.P.) and Department of Neuroradiology (R.L.P.), Montreal Neurological Institute and Hospital, and the Departments of Neurology and Neurosurgery (R.L.P., L.T.T., K.G., G.B.) and Pediatrics (R.L.P., L.T.T., K.G., G.B.), McGill University, Montreal, Canada; Departments of Child Neurology (F.K.C., M.S.v.d.K., N.I.W.) and Clinical Genetics (F.K.C., R.v.S.), VU University Medical Center, Amsterdam, the Netherlands; Department of Genetics (K.Õ.) United Laboratories, Tartu University Hospital, Tartu; Department of Pediatrics (K.Õ.), University of Tartu, Estonia; Institute of Human Genetics (T.H.), Technische Universität München; Institute of Human Genetics (T.H.), Helmholtz Zentrum München, Munich, Germany; Department of Neurology (E.W.), Birmingham Children's Hospital, UK; Department of Neurology (D.T.), University Clinic Essen, University of Duisburg-Essen, Germany; Department of Child and Adolescent Neurology (H.M.), Institute of Mother and Child, Warsaw, Poland; Department of Child Neurology (B.T.P.), AMC Academic Medical Center, Amsterdam, the Netherlands; West Midlands Regional Clinical Genetics Unit (C.P., H.C.), Birmingham Women's Hospital, UK; Departments of Pediatrics (T.A.) and Medical Genetics (H.O.), Faculty of Medicine (F.O.), Ege University, Izmir, Turkey; Department of Neurology (A.V.), Children's National Health System, Washington, DC; Neuroscience Campus Amsterdam (M.S.v.d.K., N.I.W.), the Netherlands; and Department of Medical Genetics (G.B.), Montreal Children's Hospital, McGill University Health Center, Montreal, Canada.+1