A. Dual-tracer subtraction of both 99mTc-pertechnetate and 99mTc-MIBI planar scans of a 53-year-old woman. A focal MIBI uptake is visualized below the lower pole of the right thyroid lobe, suggestive of adenoma of right lower parathyroid gland. B. SPECT/CT images of the same patient, showing a round lesion with a diameter of around 32 mm with focal MIBI uptake localized in the thorax retrotracheally at the level of Th3, suggestive of an intrathoracic ectopic parathyroid adenoma.

 
 
  Part of: Sofiyanski T, Sergieva SB, Robev BS, Dimcheva MT (2024) Dual-tracer subtraction scintigraphy combined with SPECT/CT in preoperative patients with primary hyperparathyroidism. Folia Medica 66(3): 332-339. https://doi.org/10.3897/folmed.66.e124868