Ageusia

Last revised by Daniel J Bell on 13 Jun 2023

Citation, DOI, disclosures and article data

Citation:

Weerakkody Y, Bell D, Ageusia. Reference article, Radiopaedia.org (Accessed on 27 Apr 2024) https://doi.org/10.53347/rID-166479

DOI:

https://doi.org/10.53347/rID-166479

Permalink:

https://radiopaedia.org/articles/166479

rID:

166479

Article created:

11 Apr 2023, Yuranga Weerakkody ◉

Disclosures:

At the time the article was created Yuranga Weerakkody had no financial relationships to ineligible companies to disclose.

Last revised:

13 Jun 2023, Daniel J Bell ◉

Disclosures:

At the time the article was last revised Daniel J Bell had no financial relationships to ineligible companies to disclose.

Revisions:

3 times, by 2 contributors - see full revision history and disclosures

Systems:

Central Nervous System

Tags:

stub

Synonyms:

Ageusia refers to a complete loss of taste. In instances where it is partial it is then falls under the spectrum of the conditions such as

When loss of sensation only involves half of the tongue it is then termed hemiageusia.

In may occur on its own or concomitantly with other deficiencies such as anosmia.

Ageusia may result from variable pathology which includes:

midbrain and thalamic infarction ¹
dietary deficiencies
systemic conditions
cranial nerve lesions affecting gustatory function
- neuritides: due to conditions such as herpes zoster
- dissection of cervical arteries
- space-occupying processes in the cerebellopontine angle (meningioma or neurinoma)
- neoplastic lesions affecting the skull base
iatrogenic
- following laryngoscopic manipulation
- radiotherapy
- skull trauma
- following resection of intracerebral tumours ⁴
neuralgias
infections
- COVID-19 ^2,3
polyneuropathies (due to conditions such as diphtheria, porphyria, lupus, or amyloidosis)