The parathyroid glands (epithelial bodies) were discovered by the Swedish anatomist Sandström (1880; see Kohn 1900). Sandström thought that they belonged to the thyroid gland It was Kohn (1895) who first recognized the parathyroids as special organs independent of the thyroid gland (see Appendix I of Böck 1982). It is interesting that Kohn (1895, see also 1900), who introduced the concept of “paraganglia” and “chromaffin cells,” did not consider the parathyroid glands as paraganglia. The main reasons for this may have been that no chromaffin reaction could be demonstrated in the parathyroid cells and that the branchial epithelial origin of the cells had by then been established.
KeywordsParathyroid Gland Secretory Granule Chromaffin Cell Parathyroid Adenoma Chief Cell
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