See also
parathyroid adenomas
parathyroid tumors
References
Fleischer J, Becker C, Hamele-Bena D, Breen TL, Silverberg SJ. Oxyphil parathyroid adenoma: a malignant presentation of a benign disease. J Clin Endocrinol Metab. 2004 Dec;89(12):5948-51