CADASIL patient with extracellular calcium deposits

Eliza Lewandowska; Teresa Wierzba-Bobrowicz; Julia Buczek; Grażyna Gromadzka; Dorota Dziewulska

doi:10.5114/fn.2013.39719

eISSN: 1509-572x
ISSN: 1641-4640

Folia Neuropathologica

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4/2013
vol. 51

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abstract:

CADASIL patient with extracellular calcium deposits

Eliza Lewandowska

,

Teresa Wierzba-Bobrowicz

,

Julia Buczek

,

Grażyna Gromadzka

,

Dorota Dziewulska

Folia Neuropathol 2013; 51 (4): 302-311

DOI: https://doi.org/10.5114/fn.2013.39719

Online publish date: 2013/12/24

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We report the case of a 57-year-old male patient with cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) diagnosed on the basis of ultrastructural and genetic examinations. Ultrastructurally, granular osmiophilic material (GOM) deposits, degeneration and loss of vascular smooth muscle cells (VSMC) and pericytes in small arterial and capillary vessels from skin-muscle biopsy typical of CADASIL were visible. Degeneration of pericytes and endothelial cells were often pronounced, which resulted in a complete disappearance of mural cells and extremely severe thickening of the basement membrane. Degenerative changes in blood vessels, especially evident in skeletal muscle arterioles, also included significant vacuolization of VSMC, misshapen nuclei both in vessel wall cells and skeletal muscle fibres, and deposits of a hyaline material and calcium in the vessel wall. Abundant calcium deposits were located in the vascular basement membrane and exhibited laminar morphology with abnormally arranged light and dark bands. In the basement membrane of the most severely affected microvessels, only clusters of calcium deposits and remnants of the mural cells were observed. Laminar calcifications were also observed within the basement membrane surrounding skeletal muscle fibres. Such abundant calcium deposits in CADASIL have not as yet been described. Morphological findings, described in this report, expand the spectrum of histopathological changes in this genetically determined angiopathy.

keywords:

CADASIL patient with extracellular calcium deposits

Eliza Lewandowska , Teresa Wierzba-Bobrowicz , Julia Buczek , Grażyna Gromadzka , Dorota Dziewulska

CADASIL, small blood vessels, calcification, skeletal muscle fibres

Eliza Lewandowska

,

Teresa Wierzba-Bobrowicz

,

Julia Buczek

,

Grażyna Gromadzka

,

Dorota Dziewulska