Misperception of existing odor, that is, distorted or altered olfactory perception in the presence of known stimuli. [pmid:33790036, pmid:34055592]

Parosmia (from the Greek παρά pará and ὀσμή osmḗ "smell") is a dysfunctional smell detection characterized by the inability of the brain to correctly identify an odor's "natural" smell. Instead, the natural odor is usually transformed into an unpleasant aroma, typically a "burned", "rotting", "fecal", or "chemical" smell...