This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'Phantogeusia is \nSelect and explain. \nA. Perception of pain in absence of any recognized stimuli, B. Impairment of the sense of taste, C. Painful tongue, D. Painful pyrosis in absence of any recognized stimuli', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Taste Dysfunctions\n1. Ageusia: Complete loss of all taste stimuli\n2. Hypogeusia: Impairment of the sense of taste or decreased sensitivity for all taste stimuli\n3. Dysgeusia or parageusia: A distortion or perversion in the perception of a taste\n4. Phantogeusia or gustatory hallucination: Perception of a taste in the absence of any recognized taste stimulus\nCacogeusia: Bad taste\nTorquegeusia: Twisted taste\n5. Hypergeusia: Increased sensitivity for all taste stimuli, some or a single stimulus\n6. Gustatory agnosia: Loss of the ability to classify, contrast or identify a given taste stimulus verbally\n7. Glossodynia: Painful tongue\n8. Glossopyroses: Painful pyrosis', 'role': 'assistant'}]