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': 'Severe pain which arise after injury to or sectioning of a peripheral sensory nerve is called as: \nSelect and explain. \nA. Temporal arteritis, B. Neuralgia, C. Neuritis, D. Causalgia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Complex Regional\xa0 Pain Syndrome (Causalgia, Reflex Sympathetic Dystrophy Syndrome)\nCausalgia is a term applied to severe pain which arises after injury to or sectioning of a peripheral sensory nerve.\xa0\nAlthough few reports of this condition exist in the dental literature, cases do occur after the extraction of teeth.\xa0It has readily identifiable signs and symptoms and is treatable if recognized early;\xa0however,\xa0the syndrome may\xa0become disabling if unrecognized.\nKey Concept:\nCausalgia manifests as severe pain after injury or sectioning of a peripheral sensory nerve following a\xa0diﬃcult extraction. The other names are complex regional pain syndrome and reﬂex sympathetic\xa0dystrophy syndrome.\nReference:\xa0Shafer’s Textbook of ORAL PATHOLOGY Eighth Edition page no 578', 'role': 'assistant'}]