multiple hamartoma syndrome

Meaning of multiple hamartoma syndrome: An inherited disorder marked by the formation of many noncancerous growths called hamartomas.

Definition of multiple hamartoma syndrome

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 multiple hamartoma syndrome are at increased risk of certain types of cancer, including breast and thyroid. Also called Cowden disease and Cowden syndrome.