Primary hyperparathyroidism patients with positive preoperative sestamibi scan and negative ultrasound are more likely to have posteriorly located upper gland adenomas (PLUGs).

Harari A, Mitmaker E, Grogan RH, Lee J, Shen W, Gosnell J, Clark O, Duh QY. Primary hyperparathyroidism patients with positive preoperative sestamibi scan and negative ultrasound are more likely to have posteriorly located upper gland adenomas (PLUGs). Ann Surg Oncol. 2011 Jun; 18(6):1717-22.