Also known as:
PTEN hamartoma tumor syndrome (PHTS)
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The PTEN hamartoma tumor syndrome (PHTS) is a spectrum of disorders caused by mutations of the PTEN gene. These disorders are characterized by multiple hamartomas that can affect various areas of the body. Hamartoma is a general term for benign tumor-like malformations that can affect any area of the body. Hamartomas are composed of mature cells and tissue normally found in the affected area.
Cowden syndrome is a difficult to recognize, under-diagnosed genetic disorder characterized by the development of multiple, benign tumor-like malformations (hamartomas) in various areas of the body. Affected individuals also have a predisposition to developing certain cancers, especially cancer of the breast, thyroid or mucous membrane lining the uterus (endometrium). The specific symptoms of Cowden syndrome vary from case to case.