A 60-year-old woman is incidentally found to have calcium of 11.2 mg/dL, low phosphate, and PTH three times the upper limit of normal. She is largely asymptomatic. What is the most likely diagnosis?
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A
Hypoparathyroidism
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B
Primary hyperparathyroidism
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C
Malignancy-associated hypercalcemia
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D
Vitamin D toxicity