• Internal medicine · Aug 2021

    Case Reports

    Heterozygous Cysteine-sparing NOTCH3 Variant p.Val237Met in a Japanese Patient with Suspected Cerebral Autosomal Dominant Arteriopathy with Subcortical Infarcts and Leukoencephalopathy: A Case Report.

    • Yuya Kano, Ikuko Mizuta, Akihiko Ueda, Hiroaki Nozaki, Keita Sakurai, Osamu Onodera, Yukio Ando, Kentaro Yamada, Hiroyuki Yuasa, and Toshiki Mizuno.
    • Department of Neurology, Tosei General Hospital, Japan.
    • Intern. Med. 2021 Aug 1; 60 (15): 2479-2482.

    AbstractA 64-year-old Japanese man with recurrent cerebral ischemic events and cognitive impairment was suspected of having cerebral autosomal dominant arteriopathy with subcortical infarcts and leukoencephalopathy (CADASIL) because of a family history and brain magnetic resonance imaging findings of cerebral white matter hyperintensities. The cysteine-sparing variation p.Val237Met was identified in NOTCH3. An intensive skin biopsy showed negative results (no granular osmiophilic material or positive NOTCH3 immunostaining), suggesting that the patient's definite diagnosis and pathogenicity of p.Val237Met were uncertain. We additionally reviewed previous reports of two Japanese families with p.Val237Met.

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