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olfactory hallucination (phantosmia)
Etiology:
- head injury
- post-viral olfactory dysfunction after upper respiratory infection
- temporal lobe seizures
- brain tumor
- neurosarcoidosis (focal sarcoid granulomatous encephalitis) [1]
- neurodegenerative disease
- Parkinson's disease -Alzheimer disease
- psychiatric disorder
- schizophrenia
- depression, anxiety
- radiation therapy [3] -substance abuse & withdrawal
Clinical manifestations:
- perception of a foul-smelling odor for which there is no external stimulus.
Related
parosmia (troposmia, cacosmia)
General
hallucination
References
- Ronthal M, Venna N, Hunter GJ, Frosch MP.
CASE RECORDS of the MASSACHUSETTS GENERAL HOSPITAL.
Case 15-2016. A 32-Year-Old Man with Olfactory Hallucinations
and Paresthesias.
N Engl J Med. 2016 May 19;374(20):1966-75.
PMID: 27192675
- Mayo Clinic. Swanson JW
Diseases and Conditions. Temporal lobe seizure
What causes olfactory hallucinations (phantosmia)?
http://www.mayoclinic.org/diseases-conditions/temporal-lobe-seizure/expert-answers/phantosmia/faq-20058131
- Brooks M
'Phantom Odors' a Common but Under-Reported Toxicity of Radiation Therapy.
Medscape. November 01, 2021
https://www.medscape.com/viewarticle/961865
- Wehling E, Bless JJ, Hirnstein M et al
Olfactory hallucinations in a population-based sample.
Psychiatry Res. 2021 Oct;304:114117.
PMID: 34391204 Free article.
https://www.sciencedirect.com/science/article/pii/S0165178121004145
- Leopold D.
Distortion of olfactory perception: diagnosis and treatment.
Chem Senses. 2002 Sep;27(7):611-5.
PMID: 12200340 Review.