Phantogeusia is
Perception of pain in absence of any recognized stimuli
Impairment of the sense of taste
Painful tongue
Painful pyrosis in absence of any recognized stimuli
Taste Dysfunctions
1. Ageusia: Complete loss of all taste stimuli
2. Hypogeusia: Impairment of the sense of taste or decreased sensitivity for all taste stimuli
3. Dysgeusia or parageusia: A distortion or perversion in the perception of a taste
4. Phantogeusia or gustatory hallucination: Perception of a taste in the absence of any recognized taste stimulus
Cacogeusia: Bad taste
Torquegeusia: Twisted taste
5. Hypergeusia: Increased sensitivity for all taste stimuli, some or a single stimulus
6. Gustatory agnosia: Loss of the ability to classify, contrast or identify a given taste stimulus verbally
7. Glossodynia: Painful tongue
8. Glossopyroses: Painful pyrosis