Tuberous sclerosis (TWO-bur-uhs skluh-ROW-sis) complex is a rare genetic disease that causes noncancerous (benign) lesions to grow in many parts of the body, such as the skin, brain and kidneys. The signs and symptoms of tuberous sclerosis vary — from patches of light-colored skin to seizures or behavior problems — depending on where the lesions develop.

Tuberous sclerosis is often detected during infancy or childhood. Some people with tuberous sclerosis have such mild signs and symptoms that the condition isn't diagnosed until adulthood, or it goes undiagnosed. Others experience serious disabilities.

There's no cure for tuberous sclerosis, and there's no way to predict the course or severity of the disease. With appropriate treatment, however, many people who have tuberous sclerosis lead full, productive lives.

Nov. 01, 2011