phantosmia


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phantosmia

(făn-tŏs′mē-ă) [″ + osme, smell]
An intermittent or persistent perception of odor when no odor is inhaled.
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Olfactory disorders (OD) are generally dichotomized in qualitative (parosmia, phantosmia, olfactory agnosia) and quantitative olfactory disorders (QODs: hyposmia, anosmia, hyperosmia).
Also known as phantosmia, olfactory hallucinations involve smelling odors that are not derived from any physical stimulus.
However, occasionally patients may also present with parosmia (a distortion of the sense of smell), phantosmia (smelling things that aren't there), or permanent damage of the olfactory system.