1. Safran D. Functioning parathyroid cyst. South Med J. 1998. 91:978–980.

2. Fortson JK, Patel VG, Henderson VJ. Parathyroid cysts: a case report and review of the literature. Laryngoscope. 2001. 111:1726–1728.

3. Mariani G, Gulec SA, Rubello D, Boni G, Puccini M, Pelizzo MR, Manca G, Casara D, Sotti G, Erba P, Volterrani D, Giuliano AE. Preoperative localization and radioguided parathyroid surgery. J Nucl Med. 2003. 44:1443–1458.

4. Moure D, Larranaga E, Dominguez-Gadea L, Luque-Ramirez M, Nattero L, Gomez-Pan A, Marazuela M. 99MTc-sestamibi as sole technique in selection of primary hyperparathyroidism patients for unilateral neck exploration. Surgery. 2008. 144:454–459.

5. Sukan A, Reyhan M, Aydin M, Yapar AF, Sert Y, Canpolat T, Aktas A. Preoperative evaluation of hyperparathyroidism: the role of dual-phase parathyroid scintigraphy and ultrasound imaging. Ann Nucl Med. 2008. 22:123–131.

6. Wagner PK, Rothmund M. [Correlation of tumor weight and typical pathologic laboratory parameters in primary and secondary hyperparathyroidism]. Langenbecks Arch Chir. 1983. 360:133–139.

7. Bindlish V, Freeman JL, Witterick IJ, Asa SL. Correlation of biochemical parameters with single parathyroid adenoma weight and volume. Head Neck. 2002. 24:1000–1003.

8. Hamidi S, Aslani A, Nakhjavani M, Pajouhi M, Hedayat A, Kamalian N. Are biochemical values predictive of adenoma's weight in primary hyperparathyroidism? ANZ J Surg. 2006. 76:882–885.

9. Mózes G, Curlee KJ, Rowland CM, van Heerden JA, Thompson GB, Grant CS, Farley DR. The predictive value of laboratory findings in patients with primary hyperparathyroidism. J Am Coll Surg. 2002. 194:126–130.