Parathyroid hormone is secreted from the four parathyroid glands, which are small glands in the neck, located behind the thyroid gland. Parathyroid hormone regulates calcium levels in the blood, largely by increasing the levels when they are too low. It does this through its actions on the kidneys, bones and intestine:
De novo literally means something akin to from the beginning or anew. Man at Doctor's Visit. Prostate Cancer. The Latin expression de novo literally means something akin to from the beginning or anew. When used in reference to prostate cancer (or any other cancer), it refers to the first occurrence of cancer in the body.
Neuroendocrine tumor. Neuroendocrine tumors (NETs) are neoplasms that arise from cells of the endocrine (hormonal) and nervous systems. Many are benign, while some are malignant. They most commonly occur in the intestine, where they are often called carcinoid tumors, but they are also found in the pancreas, lung and the rest of the body.