technetium-tc-99m-sulfur-colloid and Carcinoma--Medullary

Imaging with I-131 MIBG has proved useful for the detection of pheochromocytoma, neuroblastoma, and other neoplasms of neural crest origin. The authors present a case of a patient who was initially diagnosed as having follicular carcinoma of the thyroid in which I-131 MIBG played a key role in leading to the diagnosis of medullary carcinoma of the thyroid. Local and distant metastases were detected using I-131 MIBG imaging. Uptake of I-131 MIBG by medullary carcinoma of the thyroid has both diagnostic and therapeutic implications.

Topics: 3-Iodobenzylguanidine; Adenocarcinoma, Follicular; Antineoplastic Agents; Carcinoma, Medullary; Humans; Iodine Radioisotopes; Iodobenzenes; Liver Neoplasms; Male; Middle Aged; Radionuclide Imaging; Technetium Tc 99m Sulfur Colloid; Thyroid Neoplasms