Anosmia: causes

Evidence-based neurology checklist on anosmia: causes: Functional anosmia This is presbyosmia It occurs in about 25% of people >50 years Congenital anosmia: type I Congenital anosmia: type II Rhinological causes Parkinsonian disorders Other neurodegenerative diseases Other neurological causes…

Functional anosmia

  • This is presbyosmia
  • It occurs in about 25% of people >50 years

Congenital anosmia: type I

Congenital anosmia: type II

Rhinological causes

Parkinsonian disorders

Other neurodegenerative diseases

Other neurological causes

Systemic causes

Drug-induced

Nutritional causes

References

  1. Doty RL. Olfaction in Parkinson's disease and related disorders. Neurobiol Dis 2012; 46:527-552.
  2. Rolak LA. Neurology Secrets. Third edition. Hanley and Belfus Philadelphia 2001 p43.
  3. Hummel T, Landis BN, Hüttenbrink KB. Smell and taste disorders. GMS Curr Top Otorhinolaryngol Head Neck Surg 2011; 10:Doc04. 
  4. Stateman WA, Henkin RI, Knöppel AB, Flegel WA. Erythrocyte membrane antigen frequencies in patients with Type II congenital smell loss. Am J Otolaryngol 2015; 36:146-152. 
  5. Stateman WA, Knöppel AB, Flegel WA, Henkin RI. A genetic marker of the ACKR1 gene is present in patients with Type II congenital smell loss who have type I hyposmia and hypogeusia. Am J Otolaryngol 2016; 37:484-489.
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