Investigation of choice in parathyroid pathology is –: (A) CT Scan, (B) Gallium scan, (C) Thallium scan, (D) Tc – Thallium substraction scan
Answer is D. Presently, Tc - 99m sestamibi is the best available agent for parathyroid scanning. Therefore, Technetium - sestamibi (Tc - 99m MIBI) is the investigation of choice in the localization of parathyroid tumor.
Tc - 99m thallium subtraction scan is the second choice.