Parathyroid carcinoma is a rare entity representing less than 1% to 5%
of patients with primary hyperparathyroidism. Parathyroid carcinomas
are often symptomatic, have markedly elevated calcium levels, have pal
pable masses, are equally distributed between the sexes, and present 1
0 years younger than their benign counterparts. Parathyroid carcinoma
is often undiagnosed preoperatively, suspected intraoperatively, and o
nly confirmed postoperatively. When diagnosed, the treatment of choice
is an en-bloc resection of the tumor.