Most cases of<unk>  are asymptomatic. Laboratory signs of<unk>  include: * High blood levels of calcium<unk>  * A low amount of calcium excreted in the urine ( Ca excretion rate < 0.02 mmol/L) * High blood levels of magnesium (hypermagnesemia) * High normal to mildly elevated parathyroid hormone
Familial hypocalciuric hypercalcemia
Primary hyperparathyroidism
Secondary hyperparathyroidism
Tertiary hyperparathyroidism
Normophosphatemic familial tumoral calcinosis
Pseudohypoparathyroidism
Pseudopseudohypoparathyroidism
Hyperphosphatasia with mental retardation syndrome