Background The literature regarding clinical olfaction, olfactory loss, and olfactory
dysfunction has expanded rapidly over the past two decades, with an exponential rise in the …

Brain-derived neurotrophic factor (BDNF) has a crucial function in the central nervous
system and in sensory structures including olfactory and auditory systems. Many studies …

Objective/Hypothesis This study aims to determine the association between parosmia and
clinically relevant recovery of olfactory function in patients with post‐infectious olfactory …

Among those many individuals who experience a reduced odor sensitivity
(hyposmia/anosmia), some individuals also have disorders that lead to odor distortion, such …

Qualitative olfactory dysfunction is characterized as distorted odor perception and can have
a profound effect on quality of life of affected individuals. Parosmia and phantosmia …

Several studies have revealed either self-reported chemosensory alterations in large groups
or objective quantified chemosensory impairments in smaller populations of patients …

Frontotemporal dementia (FTD) is a progressive neurodegenerative disease. Diagnosis of
FTD, especially the behavioural variant, is challenging because of symptomatic overlap with …

Background: Olfactory dysfunctions and hallucinations are considered common nonmotor
symptoms in Parkinson's disease (PD). Visual and auditory hallucinations are well-known; …

Phantosmia has been described as a sense of smell without a true stimulating odor and not
been reported with COVID-19 disease. Nine patients admitted to Ear Nose Throat (ENT) …

Background Olfaction and gustation are associated with age‐related decline. Deficits in
these chemosenses have been associated with significant comorbidities. Meanwhile, frailty …