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Actinic keratosis

Actinic keratosis, also called solar or senile keratosis, is a precancerous skin condition that develops in sun-exposed skin, especially on the face, hands, forearms, and neck. It occurs most often in pale-skinned, fair-haired, light-eyed people beginning at age 30 or 40.

Actinic keratoses are persistent, noticeable, small red, brown, or skin-colored patches that may become scaly, scabbed, or crusted. The patches may itch, burn, or sting.

If the affected skin is protected from the sun, the patches may grow smaller and disappear. If sun exposure continues, they may eventually change into skin cancers (squamous cell carcinoma). Early treatment of actinic keratoses-by cryotherapy (freezing), electrosurgery (burning), curettage (scraping), or medications [Fluorouracil (5-FU) and Aldara (imiquimod)]-can prevent progression to squamous cell carcinoma.

Author Jeannette Curtis
Author Caroline Rea, RN, BS, MS
Editor Kathleen M. Ariss, MS
Editor Susan Van Houten, RN, BSN, MBA
Associate Editor Tracy Landauer
Associate Editor Pat Truman
Primary Medical Reviewer Patrice Burgess, MD
- Family Medicine
Primary Medical Reviewer Adam Husney, MD
- Family Medicine
Primary Medical Reviewer Kathleen Romito, MD
- Family Medicine
Last Updated May 25, 2007

WebMD Medical Reference from Healthwise

Last Updated: May 25, 2007
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