423563.fig.003
Figure 3: I123 scintigraphy of the thyroid gland. There was a strong uptake corresponding to the tumor in the right lobe detected on the ultrasonography. A nonsuppressible uptake was also observed throughout the remaining thyroid gland, thus suggesting underlying Graves’ disease. The total uptake percentage of I123 for four hours was approximately 24% (range: 4–16%).