Light micrograph of cells of a parathyroid gland. The parathyroid cells show round blue nuclei (many small blue dots) and roughly equal amounts of clear (white) to eosinophilic (pink-purple) cytoplasm. Interspersed fibrous tissue (larger pink areas) can also be seen. Haematoxylin and eosin stained tissue section. Magnification: x200 when printed at 10cm wide.