Would you recommend cinacalcet for patients with recurrent nephrolithiasis who have hypercalciuria despite thiazide diuretic use and who also have an elevated PTH level without localizing parathyroid adenoma on imaging?  

This is a tricky question with a nuanced answer. If the hyperparathyroidism is secondary, cinacalcet may have a role in treatment along with normalizing serum phosphorus and vitamin D. However, metabolically active kidney stones are unusual in advanced chronic kidney disease. If the hyperparathyroi...