11. Papillary tumors of the pineal region are normally well circumscribed. 12. Its role may be envisioned somewhat similarly to that of the Pineal gland. 13. In 2013 researchers first reported DMT in the pineal gland microdialysate of rodents. 14. Second, Descartes observed that the pineal gland was located near the ventricles. 15. In response, the pineal secretes the hormone melatonin. 16. Calcium and phosphorus deposits in the pineal gland have been linked with aging. 17. Pineal cytostructure seems to have evolutionary similarities to the retinal cells of chordates.18. Formerly, melatonin was derived from animal pineal tissue, such as bovine. 19. In 1649, Ren?Descartes studied the pineal gland. 20. At autopsy pineal hyperplasia was found in all three.
