A: The variant NC_000022.11:g.20991660_20991757dup in gene LZTR1 is classified as 'Pathogenic' for Schwannomatosis. Molecular consequence: SO:0001589: frameshift_variant. Variant type: Duplication. Disease database links: MONDO:MONDO:0008075,MeSH:C536641,MedGen:C1335929,OMIM:PS162091,Orphanet:93921. Review status: criteria provided, single submitter.