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: Surgery
[{'content': 'Ulcer that may develop in burn tissue is - \nSelect and explain. \nA. Marjolins, B. Rodent, C. Melanoma, D. Curlings', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. 'a' Marjolin's ulcer Marjolin's ulcer is the name given to a malignancy (usually sq cell ca) which arises in a: - any long standing wound or - a scar: eg scar of an old burn It presents the following characteristics It grows slowly as the scar is relatively avascular It is painless as scar tissue contains no nerves.", 'role': 'assistant'}]