
Further investigation of the similarities and mechanisms of these symptoms in bvFTD could help in understanding Diogenes syndrome and lead to potential treatment options. Diogenes syndrome, also known as senile squalor syndrome, is a disorder characterized by extreme self-neglect, domestic squalor, social withdrawal, apathy. This impulse may be part of the environmental dependency syndrome in frontal disease, with specific involvement of a right frontolimbic–striatal system. These patients, and a review of the literature, suggest a combination of frontal lobe disturbances: loss of insight or self-awareness with a failure to clean up or discard, a general compulsive drive, and an innate impulse to take environmental items. Diogenes syndrome: a behavioral disorder that occurs in elderly people characterized by living in squalor, unhygienic living conditions, self-neglect. The main symptoms are excessive hoarding, dirty homes, and poor personal hygiene. This case report provides a rare opportunity to better understand the distinction of Diogenes syndrome from the closely related condition hoarding disorder.

We describe 5 patients with bvFTD who exhibited a decline in self-care accompanied by hoarding behaviors. Diogenes syndrome is a behavioral disorder that affects older adults. Diogenes syndrome is highly comorbid with psychiatric and somatic disorders, including depression, obsessive-compulsive disorder, personality disorder, and stress.

Diogenes syndrome may be particularly common in behavioral variant frontotemporal dementia (bvFTD), and the investigation of these patients may help clarify the nature of this syndrome. Diogenes syndrome refers to the combination of extreme self-neglect and excessive collecting with clutter and squalor, which is often present in patients with dementia.
