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NCI Dictionary of Cancer Terms


Cowden syndrome  listen  (KOW-den SIN-drome)

  An inherited disorder marked by the formation of many noncancerous growths called hamartomas. These growths occur in the skin, breast, thyroid, colon, intestines, and inside of the mouth. Patients with Cowden syndrome are at increased risk of certain types of cancer, including breast and thyroid. Also called Cowden disease and multiple hamartoma syndrome.