PMC7511513_01
Event timeline. PTH, intact parathyroid hormone; Ca, calcium.
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F1
In 2017, a 34-year-old Chinese woman with a history of bilateral kidney stones, osteitis fibrosa cystica, and acute pancreatitis was diagnosed with primary hyperparathyroidism (Figure 1).
Imaging findings. (A,B,E,F) Technetium-99 methoxyisobutylisonitrile (99mTc-MIBI) imaging; (C,D,G,H) Enhanced computed tomography scanning. Green arrow for the parathyroid carcinoma in left inferior thyroid region, blue arrow for the carcinoma in the suprasternal fossa, and red arrow for the carcinoma in the thymic region.
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F2
Beyond our speculation, multiple tumors were detected, including one in the left inferior thyroid region, which we believed to be the recurrence of the residual tumor, and two ectopic tumors, locating in the suprasternal fossa and in the thymus region, respectively (Figure 2).