Hereditary transthyretin amyloidosis (ATTRv) is characterized by a buildup of amyloid deposits consisting of amyloid fibrils derived from the accumulation of unstable conformations of the transthyretin (TTR) protein in different tissues [1,2,3,4,5,6,7,8,9,10]. The gene discussed is TTR; the disease is Familial transthyretin-related amyloidosis.