Immunohistochemical Study on the C-cells in the Internal Parathyroid Gland of the Goat

Abstract

The C-cells in the internal parathyroid glands (PGsIV) of 13 goats aged from 1 day to 3 years old were examined by the immunohistochemical method. The PGsIV were found in the thyroid glands of 12 out of 13 goats. They were located medially in the middle region of the thyroid gland. The C-cells in the PGsIV were found in 9 out of 12 goats, and were located mainly in the periphery of the PGsIV. The proportion of C-cells to parathyroid cells was low (0.2-0.8%). C-cells were not observed in the thymic tissues, either in the thyroid glands of 2 out of 13 goats or in the external parathyroid glands. PGsIV occur-rence in thyroid glands and the C-cell occurrence in the PGsIV did not vary with age.