Чем дальше, тем отчетливее маячит параноидальная идея о псевдогипопаратиреозе второго типа, тем более, что ([
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Цитата:
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Serum calcium (total and ionised), phosphate, and PTH levels should be measured in all patients in whom the diagnosis is suspected. A serum creatinine is also required to aid in the interpretation of calcium and phosphate levels. Hypocalcaemia and hyperphosphataemia associated with elevated PTH concentration and normal 25-hydroxyvitamin D levels strongly suggest a diagnosis of PHP. However, some patients may have normal calcium, phosphate, and PTH levels.
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Хотя это очень маловероятно.
Редкие причины гиперпаратиреоза ([
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Цитата:
Rare causes
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Secondary hyperparathyroidism Pseudohypoparathyroidism due to parathyroid hormone–receptor G protein mutation
Less common conditions associated with vitamin D deficiency or resistance include malabsorption, cholestatic liver or biliary disease, drugs (eg, anticonvulsants, rifampin, ketoconazole, 5-FU/leucovorin). If severe enough, this can lead to vitamin D-dependent or -resistant rickets or osteomalacia
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И еще (возможно, просмотрел) - дефицит магния исключен?