Gilberto GV et al. - MRI and SPECT parathyroid scintigraphy showed an abnormal parathyroid lesion localized behind the inferior pole of the thyroid right lobe. At surgical reexploration a right inferior parathyroid adenoma was removed (258 mg). However, intraoperative PTH remained high and a total thyroidectomy was performed looking for an intrathyroid lesion. After that, the elevated PTH persisted and an ectopic parathyroid gland was identified in the tracheoesophageal groove (958 mg), corresponding with the lesion seen on the fusion image of MRI and SPECT.
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