During the pediatric endocrinology consultation for further investigation of hypercalcemia and elevated PTH levels (August 2023), the laboratory investigation revealed hypercalcemia (15.1 mg/dL) and elevated PTH levels (1,685.8 ng/L), in addition to serum phosphorus (4.2 mg/dL), ALP (191 U/L), vitamin D (6.6 μg/L), and spot urinalysis (albumin/creatinine: 66 mg/g; microalbumin: 2.4 mg/dL; phosphorus: 49.27 mg/dL; calcium: 22.20 mg/dL; creatinine: 36.98 mg/dL; urea: 965.50 mg/dL) findings. Here, PTH is linked to hypercalcemia disease.