to examine this proposition , we reviewed the records of 1,962 patients with surgically proved hpt and culled all those who met the following criteria : ( 1 ) identification and excision of two enlarged and histologically hypercellular parathyroid glands , each weighing more than 70 mg , and ( 2 ) identification and preservation of two other normal-sized parathyroid glands .
C0020502
hpt
C0030518
parathyroid glands