Pre-Cancer or Actinic Keratosis (AK’s) are areas on the sun-exposed skin that are raised, rough, scaling spots that grow or form due to overexposure to sun. They may be red, brown, yellowish or skin color. They are most commonly found in sun-exposed areas of the skin, such as the face, scalp, chest, arms, and hands. Actinic keratoses are called pre-skin cancers since a certain percentage of them can turn into squamous cell carcinoma (SCC) of the skin. Different studies cite different percentages of how many AK’s will go on to develop into SCC, but the number is between 10% to 25%. There is no way of knowing which pre-cancers will develop into skin cancer, so all pre-cancers (AK’s) are treated with liquid nitrogen.
Example of Actinic Keratosis from our patient