It is believed to have >95% sensitivity and >85% specificity for diagnosis of ATTR-CA, with the false positives obtained from AL amyloidosis removed with assessment of serum or urine light chains; the positive predictive value becomes 100% in evidence of myocardial tracer uptake and absence of monoclonal bands [16,3], supporting the diagnosis in our patient following the repeat light chain panel. Here, TNFSF14 is linked to AL amyloidosis.