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Abstract Background Rapidly progressive dementias(RPD) are conditions that typically cause dementia over weeks or months 1 Due to the current COVID-19 pandemic, it has become difficult for dementia caregivers on the one hand, and relevant detailed examination and management in the hospitals worldwide, on the other Recent studies shows that ApoE e4 genotype is associated with both dementia and delirium2 Hence further research into the possible genetic link between dementia and COVID-19 is the need of the hour Method We studied two elderly male patients, aged 66 and 68 years, presenting with memory decline of recent events, untimely and non-sequential Activities of Daily Living and apathetic alongwith way finding difficulty and errors in money transactions One patient also had forgetfulness of handwashing and face hygiene measures, and of using preventive face masks in public places as advised for public health during COVID-19 outbreak On examination, vitals were stable and normal fundus examination with no fever, dry cough or tiredness, and no evidence of Increased Intracranial Pressure(ICP) MMSE score was 16/30 and 17/30 respectively, recent memory and visuospatial skills were impaired and slowness of activities were present Motor examination was normal, with no focal or non-focal neurological deficit or sensory impairment All routine tests were normal Neuroimaging with contrast in one patient showed well defined hyperdense mass lesion of size 4 0*3 5*3 0 cms showing heterogenous contrast enhancement in left parieto-occipital lobes with moderate perilesional edema suggestive of astrocytoma (intermediate type) Result High index of suspicion of Space occupying lesions should be made in the background of RPD even in the absence of focal or non focal neurological deficit or without signs of raised ICP Conclusion Most of the etiologies causing RPD especially surgical causes, if diagnosed early and promptly are reversible and treatable The double hit of dementia and COVID-19 pandemic necessitates further research globally References: 1) Paterson RW, Takada LT, Geschwind MD Diagnosis and treatment of rapidly progressive dementias Neurol Clin Pract 2012;2(3):187?200 2) Kuo C-L, Pilling LC, Atkins JL, Kuchel GA, Melzer D ApoE e2 and aging-related outcomes in 379,000 UK Biobank participants medRxiv [Internet] 2020: 2020 02 12 20022459
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