While in the C9FTD group, the C9ORF72 mutation was associated more frequently with bvFTD, presented with inappropriate behavior and agitation, this is in contrast to patients with bvFTD who have a GRN mutation, in whom apathy dominates the clinical spectrum (Beck et al., 2008; Pickering-Brown et al., 2008). The gene discussed is GRN; the disease is behavioral variant of frontotemporal dementia.