Molecular basis : Caused by trinucleotide repeat expansion (GGC)n in the NOTCH2 N-terminal-like C gene
(NOTCH2NLC, 618025.0001);
Laboratory abnormalities : Eosinophilic intranuclear inclusions in fibroblasts and sweat gland cells; Inclusions stain positively for ubiquitin and p62 (SQSTM1);