Abstract Background Frontal variant frontotemporal dementia is a common cause of presenile dementia. A hexanucleotide expansion on chromosome 9 has recently been recognized as the most common genetic mutation cause of this illness. This sub-type tends to present psychiatrically with psychosis being a common presenting symptom before the onset of cognitive changes or brain atrophy. https://www.bekindtopets.com/quick-grab-7-Ah-24-Volt-AGM-Battery-Pack-mega-value/