This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
[{'content': "This patient had hypercalcemia with a suppressed parathyroid hormone level. What is the diagnosis? \nSelect and explain. \nA. Hodgkin's lymphoma, B. Hyperthyroidism, C. Parathyroid carcinoma, D. Small-cell lung cancer", 'role': 'user'}, {'content': "Answer: A \nExplanation: Answer A. Hodgkin's lymphomaBilateral hilar lymphadenopathy with hypercalcemia and a suppressed parathyroid hormone level is most consistent with Hodgkin's lymphoma, which is associated with unregulated activation of vitamin D.", 'role': 'assistant'}]