In contrast, PHPT was diagnosed at an older age (35.79 ± 14.19 years) than insulinoma, and the mean age of patients with asymptomatic PTHT (95.4%, 41/43) that was detected only by laboratory testing of serum PTH and Ca was even older (36.15 ± 14.32 years). Here, PTH is linked to pancreatic insulinoma.