excessive secretion of parathyroid hormone resulting in abnormally high levels of calcium in the blood; can affect many systems of the body (especially causing bone resorption and osteoporosis)
This is actually "secondary hyperparathyroidism" with enlarged glands as a consequence of chronic renal failure with impaired phosphate excretion. 实际上是伴有腺体扩大的继发性甲状旁腺功能亢进，它是由慢性肾衰血磷排泄障碍所致。
Here is a parathyroid adenoma, which is the most common cause for primary hyperparathyroidism. 甲状旁腺腺瘤是引起原发性甲状旁腺功能亢进最常见的原因。
