PTH and Hypercalcemia: The diagnostic efficacy of lncRNA score (AUC=0.872) in this study was superior to conventional PTH test in differentiating benign and malignant lesions within PHPT, especially in PHPT patients with combined hypercalcaemia, and its AUC was further elevated to 0.974 (sensitivity 85.71%, specificity 100%) (79).