Loss of sense of smell may be involved in certain neurodegenerative diseases, including Parkinson Disease and Alzheimer’s Disease. This literature review examines the relationships between olfactory dysfunction and neurological / neurodegenerative diseases. Olfactory tests may have a role in the screening for people at high risk of dementia.
Costa Lima Godoy, MD. Voegels, RL. [and] de Rezende Pinna, R. [et al] (2015). Olfaction in neurologic and neurodegenerative diseases: a literature review. International Archives of Otorhinolaryngology. April 2015, Vol.19(2), pp.176-9. (Click here to view the PubMed abstract).