The third patient with AHH was an 87-year-old man with a disturbed consciousness in whom PTH-dependent hypercalcemia with hypocalciuria was revealed (cCa, 14.3 mg/dL; iP, 2.2 mg/dL; Cre, 0.97 mg/dL; intact PTH, 32 pg/mL; and FECa, 0.18%; Table 1). This evidence concerns the gene PTH and hypercalcemia disease.