GRN mutation in a patient with a behavioral variant of frontotemporal lobar degeneration (bvFTD)

Sylwia Walczysková; Pavel Ressner; Šárka Hilscherová; Jaroslav Kotlas; Jiří Konrád; Věnceslava Svobodová

doi:10.5114/fn.2017.66715

eISSN: 1509-572x
ISSN: 1641-4640

Folia Neuropathologica

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1/2017
vol. 55

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abstract:

Case report

GRN mutation in a patient with a behavioral variant of frontotemporal lobar degeneration (bvFTD)

Sylwia Walczysková

,

Pavel Ressner

,

Šárka Hilscherová

,

Jaroslav Kotlas

,

Jiří Konrád

,

Věnceslava Svobodová

Folia Neuropathol 2017; 55 (1): 67-72

DOI: https://doi.org/10.5114/fn.2017.66715

Online publish date: 2017/03/27

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The clinical spectrum of frontotemporal lobar degeneration (FTLD) is characterized by personality changes, language impairment, and executive function deficits. About 40% of FTLD cases have a family history of the disease, and the GRN gene is currently the most frequent genetic determinant. In cases of inherited FTLD with GRN mutations, parkinsonism is often an early sign due to greater grey matter atrophy in the caudate nucleus and bilateral atrophy in the thalamus. We investigated a female patient with signs of frontotemporal lobe atrophy and unilateral caudate nucleus atrophy on MRI. DNA was isolated from peripheral blood leukocytes and tested for GRN gene mutations. A pathogenic splice donor site mutation, c.708+1G>A, was found in the GRN gene. MRI showed unilateral caudate nucleus atrophy. This report extends the evidence for phenotypic and neuropathological heterogeneity in FTLD spectrum disorders due to splicing mutations in the GRN gene.

keywords:

GRN mutation in a patient with a behavioral variant of frontotemporal lobar degeneration (bvFTD)

Sylwia Walczysková , Pavel Ressner , Šárka Hilscherová , Jaroslav Kotlas , Jiří Konrád , Věnceslava Svobodová

caudate nucleus atrophy, frontotemporal dementia, GRN gene, splicing mutation

Sylwia Walczysková

,

Pavel Ressner

,

Šárka Hilscherová

,

Jaroslav Kotlas

,

Jiří Konrád

,

Věnceslava Svobodová