Fig. 2

Tc-99 m MIBI dual-phase parathyroid scintigraphy. a b cFocal increased uptake in clavicular head area of left sternocleidomastoid muscle (black arrow). Parathyroid Scintigraphy performed 3 years after total parathyroidectomy with auto-transplantation; (A) Early and wash-out images acquired at 10 min post injection; (b) Delayed and wash-out images acquired at 120 min post injection; (c) Axial fused images acquired at 120 min post injection; (d) (e) (f) A hyperfunctioning auto-transplanted parathyroid tissue with increased uptake was identified compared to previous scintigraphy (black arrowhead). Parathyroid Scintigraphy performed 8 years after total parathyroidectomy with auto-transplantation; (d) Early and wash-out images acquired at 10 min post injection; (e) Delayed and wash-out images acquired at 120 min post injection; (f) Axial fused images acquired at 120 min post injection