Treatments for actinic keratosis rarely leave scars

Dr. Komaroff is a physician at Harvard Medical School. To send questions, go to AskDoctorK.com, or write: Ask Doctor K, 10 Shattuck St., Second Floor, Boston, 02115. Anthony Komaroff
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DEARDOCTORK >> I saw my doctor about a patch of rough, brown skin that I noticed on my upper arm. He said it is actinic keratosis and needs to be removed. Is it cancer? How will it be removed? DEAR READER>> Actinic keratosis (AK) is a precancerous...

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