Hypercalcemia is seen in all, except-

<p>Primary hyperparathyroidism is a generalized disorder of calcium, phosphate, and bone metabolism due to an increased secretion of PTH. The elevation of circulating hormone usually leads to hypercalcemia and hypophosphatemia. There is great variation in the manifestations. Patients may present with multiple signs and symptoms, including recurrent nephrolithiasis, peptic ulcers, mental changes, and, less frequently, extensive bone resorptionHypercalcemia in vitamin D intoxication is due to an excessive biologic action of the vitamin, perhaps the consequence of increased levels of 25(OH)D rather than merely increased levels of the active metabolite 1,25(OH) 2 D (the latter may not be elevated in vitamin D intoxication). 25(OH)D has definite, if low, biologic activity in the intestine and bone. The production of 25(OH)D is less tightly regulated than is the production of 1,25(OH) 2 D. Hence concentrations of 25(OH)D are elevated severalfold in patients with excess vitamin D intake.In secondary adrenal insufficiency, only glucocoicoid deficiency is present, as the adrenal itself is intact and thus still amenable to regulation by the RAA system. Adrenal androgen secretion is disrupted in both primary and secondary adrenal insufficiency . Hypothalamic-pituitary disease can lead to additional clinical manifestations due to involvement of other endocrine axes (thyroid, gonads, growth hormone, prolactin) Causes of Secondary Adrenal Insufficiency Diagnosis Gene Associated Features Pituitary tumors (endocrine active and inactive adenomas, very rare: carcinoma)(harrison 18 pg 2956)</p>