Figure 1

Ultrasound found 4 hyperplastic parathyroid nodules in a patient with secondary hyperparathyroidism (SHPT) and confirmed by ECT. (a) The middle and lower right parathyroid gland (yellow arrow). (b) The lower right parathyroid gland (black arrow). (c) The upper left parathyroid gland (blue arrow). (d) The lower left parathyroid gland (purple arrow). (e) Emission computed tomography (ECT) coronal image shows that nodule has concentration of radioactivity in the initial phase (20 min) and late phase (120 min) of 99 m Tc-sestamibi sequence.