technetium-tc-99m-tetrofosmin and Nevus--Epithelioid-and-Spindle-Cell

Spindle epithelial tumor with thymus-like differentiation (SETTLE) of the thyroid is a rare tumor that occurs habitually in children and young adults. To date, about 20 cases of SETTLE have been reported in the English medical literature. It is considered to be a tumor of low malignancy with a favorable outcome, but delayed blood-borne metastases have been reported (sometimes over 20 years after initial treatment). In the current report, the authors describe an interesting case of SETTLE in a young woman. Double phase Tc-99m tetrofosmin scintigraphy showed accumulation of the tracer in the thyroid mass.

Topics: Adult; Female; Humans; Nevus, Epithelioid and Spindle Cell; Organophosphorus Compounds; Organotechnetium Compounds; Radionuclide Imaging; Sodium Pertechnetate Tc 99m; Thyroid Neoplasms