Fig. 1

Computed Tomography scan of the neck with IV contrast showing the primary parathyroid lesion and the separate supra-aortic parathyroid lesion, likely secondary to seeding from FNA. a, b, c - Coronal view; d, e - Axial view. The normal thyroid gland is identified (a). The primary parathyroid lesion, measuring 59.7 mm, is located posterior to the thyroid gland (b). The separate supra-aortic lesion likely secondary to seeding measures to be 14.6 mm (c). The primary parathyroid lesion measures 18.6 mm x 28.6 mm (d). The separate supra-aortic lesion localized in the pre-tracheal area measures 12.6 mm x 15.8 mm (e)