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: Skin
[{'content': 'Hyperpigmented lesions are \nSelect and explain. \nA. Pityriasisalba, B. Melanoma, C. Naevus anaemicus, D. All', 'role': 'user'}, {'content': "Answer: B \nExplanation: B i.e. Melanoma Hyperpigmentation (hyper melanosis) of skin is seen in endocrine disorders like Addison's diseaseQ, acromegaly, Nelson's syndrome, Cushing's (ectopic ACTH) syndromeQ, carcinoid syndrome, pheochromocytoma, and hypehyroidism (Grave's disease) but not in hypothyroidism or myxedeme. Melanoma, dyskeratosis congenita & lentigines lichen planusQ cause hyperpigmentation.", 'role': 'assistant'}]