A scaling inflammatory disease of the skin. It is noncontagious and may involve the chest, back, face, and arms. It occurs in adults of both sexes, and by age 60, almost everyone has a few seborrheic keratoses.
Causes of Keratoses, Seborrheic
The cause of seborrheic keratoses is unknown.
Signs and Symptoms of Keratoses, Seborrheic
Seborrheic keratoses produce papules that are small, raised bumps of the skin. They are frequently flat-topped with well-defined borders. Young papules are flat and light brown, while advanced papules are dark brown or black. These papules are usually much wider than they are tall. Typically, they measure 5 mm to 20 mm in diameter, on the chest, back, face and arms. They don’t itch and are not painful. They can occur individually or in groups as large as 100.
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Medical Content Last Updated on 07/12/2008
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