11. It experiences especially high expression in the parathyroid gland . 12. As in many endocrine organs, with age, more oxyphil cells appear in the parathyroid gland . 13. When secondary hyperparathyroidism is corrected and the parathyroid glands remain hyperfunctioning, it becomes tertiary hyperparathyroidism. 14. The MEN-1 syndrome often exhibits tumors of parathyroid glands , anterior pituitary, endocrine pancreas, and endocrine duodenum. 15. Parathyroid glands share a similar blood supply, venous drainage, and lymphatic drainage to the thyroid glands.16. Parathyroidectomy, the surgical removal of one or more parathyroid glands , may be required to control symptoms. 17. This binding will increase the sensitivity of calcium-sensing receptors ( CaSR ) on the parathyroid gland . 18. Because of his discovery, parathyroid glands have sometimes been referred to as " Gley's glands ". 19. From 1909 MacCallum investigated a unique tetanic condition called gastric tetany, in which parathyroid glands are normal. 20. Some people have one or more parathyroid glands elsewhere in the neck anatomy or in the chest.