Endocrine Abstracts

Background: Parathyroid carcinoma (PC) is a rare cause of primary hyperparathyroidism (PHPT). Distinguishing PC from other tumours underlying PHPT can be difficult and sometimes malignant diagnosis can be made only after recurrence of the disease. Atypical parathyroid adenomas (APA) have similar histological features as PC but lack signs of invasive growth. The expression of somatostatin receptors (SSTR) 1–5 in parathyroid tumours, commonly expressed in other neuroendocri...