case_images: PMC8604519_01
case_images: Showing enhancing nodule in the right superior mediastinum between the superior vena cava and brachiocephalic artery
case_images: ZJCH_A_1981531_F0001_PB.jpg
case_images: PMC8604519_01_ZJCH_A_1981531_F0001_PB.jpg
case_images: f0001
case_images: Intraoperatively, the PTHi was 228 pg/ml, which later decreased to 169.40 pg/ml post-operatively Figure 1. MRI of the neck with and without contrast showed a 9 mm enhancing nodule in the right superior mediastinum between the superior vena cava and the brachiocephalic artery as seen in Figure 1.