Cowden syndrome

Cowden syndrome

Also known as: PTEN hamartoma tumor syndrome (PHTS)

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.

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From the experts

Ask an Expert: Chemotherapy and insomnia

Q: I'm undergoing chemo, and though I am experiencing heavy-duty fatigue, I am also suffering from insomnia! Sometimes it's hard to fall asleep; other nights I wake up around 3 a.m. for an hour or two. My medical oncologist said chemo can disrupt the sleep-wake cycle and prescribed Ambien. I don't like the idea of relying on a sleeping pill. Anything else I can do?

Answer from Miles Hassell, M.D., director of Providence Integrative Medicine at Providence Cancer Center:

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