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FIGURE 3. Classical single-tracer, double-phase parathyroid scintigraphy with 99mTc-sestamibi. (Left) Image at 15 min shows physiologic early uptake in thyroid gland, with clear focus of moderately increased accumulation at lower pole of right thyroid lobe. (Right) Late scan shows almost complete washout of 99mTc-sestamibi from thyroid gland, with obvious focal retention of radioactivity at lower pole of right thyroid lobe. Minimally invasive radioguided surgery confirmed presence of parathyroid adenoma.
