Epilepsy and ovarian failure: Two cases of adolescent-onset ovarioleukodystrophy.

Vanishing white matter disease (VWM) was described by Van der Knaap in 1996. This association with premature ovarian failure is known as ovarioleukodystrophy. This is a rare entity caused by a mutation in one of the subunits of eukaryotic initiation factor 2B (EIF2B). The onset in adulthood or late in adolescence is very infrequent. A 41-years-old woman and her 37-years-old sister developed epilepsy in association with premature ovarian failure at the age of 13 and 18 respectively. The oldest-one started 17 years later progressive subcortical cognitive decline with predominant behavioural disorders and a progressive spastic paraparesis in association with symmetric cystic changes in the with matter of both hemispheres. In both patients we found the c.1117C>T (p.Arg373Cys) mutation in homozygosis in the EIF2B4 gen.