A 64-year-old woman has recurrent renal stones and constipation. Corrected calcium is 2.86 mmol/L, phosphate is 0.72 mmol/L, PTH is elevated and

Question

A 64-year-old woman has recurrent renal stones and constipation. Corrected calcium is 2.86 mmol/L, phosphate is 0.72 mmol/L, PTH is elevated and 25-hydroxyvitamin D is sufficient. Creatinine is normal. There is no malignancy history. What is the most likely diagnosis?

Accepted Answer

Primary hyperparathyroidism

Answer

Humoral hypercalcemia of malignancy

Answer

Familial hypocalciuric hypercalcemia

Answer

Granulomatous calcitriol excess

Answer

Vitamin D intoxication

Primary hyperparathyroidism — RCPSC IM MCQ

A 64-year-old woman has recurrent renal stones and constipation. Corrected calcium is 2.86 mmol/L, phosphate is 0.72 mmol/L, PTH is elevated and 25-hydroxyvitamin D is sufficient. Creatinine is normal. There is no malignancy history. What is the most likely diagnosis?