Endocrine Abstracts

Background: Parathyroid carcinoma (PC) is uncommon and occurs in only 1–5% cases of primary hyperparathyroidism. The histological diagnosis of parathyroid tumors can be challenging, and beneficial histological markers are not available for diagnosis or predicting the prognosis of patients. In this study, we investigated the expression of Ki-67, parafibromin, p27, and Rb protein in parathyroid tumors and assessed the correlation between histological diagnosis or prognosis,...