Mutated wild‐type transthyretin protein has been detected in up to 25% of heart autopsies in older adults.42 With large amounts of myocardial infiltration, this mutated protein leads to the wild‐type transthyretin cardiac amyloidosis (ATTRwt), previously known as senile cardiac amyloidosis. The gene discussed is TTR; the disease is cardiac amyloidosis.