Medicine Endocrinology 0dfb1149 Which of the following is associated with secondary hyperparathyroidism - A Parathyroid adenoma B Marked hypercalcemia C Chronic renal failure D Parathyroidectomy relieves the symptoms High-Yield Explanation severe secondary hyperparathyroidism occurs due to hypercalcemia associated with renal failure (Harrison 17 pg 2387)