This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S., Subject name: Medicine
[{'content': 'A 32-year-old man presents for rountine evaluation. He has no symptoms but has noticed some new "nodules" on his legs. Physical examination reveals lumps on his Achillis tendon, yellow lesions around his eyes, and pigmentation of his iris. Which of the following is the most likely diagnosis? \nSelect and explain. \nA. familial hyperlipidemia, B. diabetes, C. myxedema, D. chronic renal disease', 'role': 'user'}, {'content': 'Answer: A \nExplanation: (a) Source: (Fuster, pp. 236-237)Early atherosclerosis with tendon xanthomas, xanthelasma, and arcus senilis are characteristics of familial hypercholesterolemia. The disorder is inherited in an autosomal dominant manner.', 'role': 'assistant'}]