Molecular genetic analysis in patients with FDD revealed the presence of a 10‐nucleotide duplication insertion (BRI2795‐796InsTTTAATTTGT) in the 3’‐end of the coding region of the BRI2gene (also known as ITM2B(7)), located on the long arm of chromosome 13 33, 34. The gene discussed is ITM2B; the disease is ADan amyloidosis.