Definition of Ectopic ADH secretion:

Antidiuretic hormone (ADH), or vasopressin, is a substance produced naturally by the hypothalamus and released by the pituitary gland. The hormone controls the amount of water your body removes.

Ectopic ADH secretion is the release of ADH from an abnormal location within the body. Ectopic means "out of place."

Causes, incidence, and risk factors:

The most common cause of ectopic ADH secretion is cancer.

See also:

• ADH test