Actinic Keratosis (A Precancerous Condition)

What is actinic keratosis?

Actinic keratosis, also known as a solar keratosis, is a scaly or crusty bump that arises on the skin surface. The base may be light or dark, tan, pink, red, a combination of these, or the same color as the skin. The scale or crust is horny, dry, and rough, and is often recognized by touch rather than sight. Occasionally, it itches or produces a pricking or tender sensation.

Actinic keratosis can be the first step in the development of skin cancer, and, therefore, is considered a precancerous skin condition. The presence of actinic keratoses indicates that sun damage has occurred and that any kind of skin cancer can develop.


What causes actinic keratosis?

Sun exposure causes almost all actinic keratoses. Sun damage to the skin accumulates over time, so that even a brief exposure adds to the lifetime total. Certain groups of people are more at risk than others, including the following:

    *   People who have fair skin, blonde or red hair, and blue, green, or gray eyes are at the greatest risk, but darker-skinned people can develop keratoses if they expose themselves to the sun without protection.
    *   African-Americans rarely have these lesions.
    *   Individuals who are immunosuppressed as a result of cancer chemotherapy, acquired immune deficiency syndrome (AIDS), or organ transplantation are also at higher risk.

One in six people will develop an actinic keratosis in the course of a lifetime, according to some estimates. Older people are more likely than younger people to develop actinic keratoses, because cumulative sun exposure increases with age.

Treatment for actinic keratosis:

Specific treatment for actinic keratosis will be determined by your physician based on:

    *  your age, overall health, and medical history
    *  extent of the disease
    *  your tolerance for specific medications, procedures, or therapies
    *  expectations for the course of the disease
    *  your opinion or preference

When diagnosed early, treatment for actinic keratosis may include cryotherapy (freezing the lesion), topical chemotherapy (anticancer drugs), or other treatments.

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