Article
Divergent clinical presentations and management of calcium-sensing receptor (CaSR) mutations: a case report.
Journal of medical case reports - 25 Apr 2026
Kopanos Stylianos, Feldkamp Joachim
Abstract excerpt
BACKGROUND: Primary hyperparathyroidism (PHPT) and familial hypocalciuric hypercalcemia (FHH) are key differential diagnoses in parathyroid hormone (PTH)-mediated hypercalcemia. While PHPT often arises from single-gland parathyroid adenomas, CaSR mutations are typically associated with FHH. However, the coexistence of CaSR mutations and PHPT represents an unusual presentation, and the variability in their...
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