| The pineal gland hormone, melatonin, is one of the endproducts regulated by the circadian system. |
| The tumor was located in the pineal gland and was well demarcated from the surrounding brain tissue, especially from the cerebellum. |
| The pineal gland or pineal body is a small gland in the middle of the head. |
| These are extremely rare benign tumours which develop from the pineal gland situated between the two halves of the brain. |
| Apparently, psychoactive substances stimulate the pineal gland in the brain. |
| One theory is that it is related to the amount of melatonin in the body, a hormone secreted by the pineal gland. |
