Systemic involvement in adult-onset leukoencephalopathy with intracranial calcifications and cysts (Labrune syndrome) with a novel mutation of the SNORD118 gene.

Abstract:

BACKGROUND AND PURPOSE:Although Labrune syndrome is a well-known disorder characterized by a typical neuroradiological triad, namely leukoencephalopathy, intracranial calcifications and cysts, there are no reports of systemic involvement in this disorder. This paper attempts to describe a peculiar clinical manifestation related to a novel mutation in the SNORD118 gene. METHODS:Clinical examination, brain and total-body imaging, and neurophysiological and ophthalmological investigations were performed. Amplification of the SNORD118 gene and Sanger sequencing were integrated to investigate potential causative mutations. RESULTS:A 69-year-old woman, with a long history of episodes of vertigo and gait imbalance, was referred to our hospital for progressive cognitive and motor deterioration. Computed tomography and magnetic resonance imaging disclosed diffuse bilateral leukoencephalopathy in periventricular and deep white matter, widespread calcifications and numerous cysts in the brain, liver, pancreas and kidneys. The genetic analysis revealed two biallelic variants in the SNORD118 gene, one of which is novel (n.60G>C). CONCLUSIONS:This is the first report of adult-onset Labrune syndrome with an unusual systemic involvement presenting a novel mutation in the SNORD118 gene.

journal_name

Eur J Neurol

authors

Bonomo G,Monfrini E,Borellini L,Bonomo R,Arienti F,Saetti MC,Di Fonzo A,Locatelli M

doi

10.1111/ene.14313

subject

Has Abstract

pub_date

2020-11-01 00:00:00

pages

2329-2332

issue

11

eissn

1351-5101

issn

1468-1331

journal_volume

27

pub_type

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