FALSE-POSITIVE UPTAKE OF TC-99M PENTA-DMSA IN FIBROUS DYSPLASIA OF BREAST IN A PATIENT WITH MEDULLARY CARCINOMA OF THYROID

Abstract

Tc-99m penta-DMSA has been established as a tumor-seeking agent in the detection of primary and metastatic medullary carcinoma of thyroid. In a case with Sipple's syndrome (pheochromocytoma and medullary carcinoma of thyroid) the Tc-99m penta-DMSA scan showed increased accumulation in the right breast, in which there was a mass shown by MRI.