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': '"Fothergill\'s disease" is one of the synonyms of: \nSelect and explain. \nA. Sarcoidosis, B. Multiple sclerosis, C. Trigeminal neuralgia, D. Lupus erythematosus', 'role': 'user'}, {'content': "Answer: C \nExplanation: Trigeminal\xa0Neuralgia (Tic Douloureux, Trifacial Neuralgia, Fothergill's Disease)\nTrigeminal neuralgia is an archetype of orofacial neuralgias which follows the anatomical distribution of the\xa0fifth cranial nerve.\xa0It mainly affects the second and third divisions of the trigeminal nerve and almost always\xa0exhibits a trigger zone,\xa0stimulation of which initiates paroxysm of pain.\xa0The pain is often accompanied by a\xa0brief facial spasm or tic.\xa0Pain distribution is unilateral and lasts for a few seconds to few minutes.\xa0Physical\xa0examination\xa0eliminates\xa0alternative\xa0diagnoses.\xa0Signs of cranial nerve dysfunction or other neurologic abnormality exclude the diagnosis of idiopathic TN and suggest that pain may be secondary to a structural lesion.\nReference:\xa0Shafer’s Textbook of ORAL PATHOLOGY Eighth Edition page no 571", 'role': 'assistant'}]