As most cases of<unk>  are asymptomatic and benign, the diagnosis of<unk>  is less likely to be made. Typically, diagnosis is made in the pursuit of uncovering the etiology of<unk> . Calcium levels are often in the high normal range or slightly elevated. Commonly, the parathyroid hormone level is checked and may be slightly elevated or also on the high normal end. Normally, high calcium should cause low PTH and so this level of PTH is inappropriately high due to the decreased sensitivity of the parathyroid to calcium. This may be mistaken for primary hyperparathyroidism. However, evaluation of urine calcium level will reveal a low level of urine calcium. This too is inappropriate as high serum calcium should result in high urine calcium. If urine calcium is not checked, this may lead to parathyroidectomy for presumed primary hyperparathyroidism. Additionally as the name implies, there may be a family history of benign<unk> . Ultimately, diagnosis of<unk>  is made — as the name implies — by the combination of low urine calcium and high serum calcium.
Familial hypocalciuric hypercalcemia
Primary hyperparathyroidism
Secondary hyperparathyroidism
Tertiary hyperparathyroidism
Normophosphatemic familial tumoral calcinosis
Pseudohypoparathyroidism
Pseudopseudohypoparathyroidism
Hyperphosphatasia with mental retardation syndrome