Heterozygous carriers of variants in a gene associated with autosomal recessive forms of FA are not at risk of FA, but may be at increased risk of breast, ovarian, and/or other cancers, if the monoallelic variants in question are in BRCA1, BRCA2, PALB2, BRIP1 or RAD51C. This evidence concerns the gene PALB2 and Friedreich ataxia.