Right temporal lobar atrophy (RTLA) is an anatomic variant of frontotemporal dementia (FTD), characterized by behavioral dysfunction, personality changes, episodic memory loss, and prosopagnosia; attributable to an asymmetrical predominantly right-sided, frontotemporal atrophy. The disease is frontotemporal dementia, right temporal atrophy variant (MONDO_0017399). Also known as: RTLA, rvFTD.