Mathematical model for preoperative differential diagnosis for the parathyroid neoplasms.

Background And Objective: Preoperative diagnosis of parathyroid carcinoma (PC) is critical for the determination of the scope of surgical intervention. Nowadays, specific diagnostic markers for differentiation of PC and benign tumors are unknown, and less than half of patients with PC undergo necessary surgery. The aim of this study was to develop the instrument for preoperative diagnosis of PC.