TTR and ITM2B amyloidosis: Established associations between these genes and HA include GSN and familial amyloidosis of the Finnish type (FAF; Nikoskinen et al., 2015), TTR and transthyretin-related amyloidosis (AMYL-TTR; Sekijima, 2015), ITM2B and familial British dementia or familial Danish dementia (Del Campo and Teunissen, 2014), as well as CST3 and cerebral amyloid angiopathy (Abrahamson et al., 1989).