TY - JOUR AU - Seibel, Hugo R AB - ABSTRACTThe ultrastructure of one hyperplastic and three adenomatous parathyroid glands have been described. Electron dense bodies measuring 0.08–0.5 microns in diameter and similar to those reported by Roth & Munger (1962) and Weymouth & Sheridan (1966) were described. These bodies were increased in number in the pathological glands, observed primarily at the vascular pole of the cell and frequently within the adjoining endothelial cells. Similar structures were found frequently within the mitochondria. In all probability, these electron dense bodies represent secretory material; the mitochondria play an intimate role in this metabolic process of secretion.Large, whorl-shaped structures, composed of concentric membranes, were also described. These structures may be of functional significance in hypersecreting glands, since they were observed in the pathological parathyroid glands only.»Transitional« cells were readily apparent. TI - AN ELECTRON MICROSCOPIC STUDY OF THE PARATHYROID GLANDS IN MAN: EVIDENCE OF SECRETORY MATERIALSupported by A. D. Williams 3558 (594). JF - European Journal of Endocrinology DO - 10.1530/acta.0.0610334 DA - 1969-06-01 UR - https://www.deepdyve.com/lp/oxford-university-press/an-electron-microscopic-study-of-the-parathyroid-glands-in-man-PqwMattcVw SP - 334 EP - 342 VL - 61 IS - 2 DP - DeepDyve ER -