Chapter 2 - Precancers & Biopsy

Aim of the precancer section: After reviewing this chapter the reader should be more familiar with the precancer called actinic keratosis and how it relates to squamous cell carcinoma. The different forms of actinic keratosis, a human's most observable common skin cancer, will be discussed. Treatments for the precancer called actinic keratosis including fluorouracil (Effudex, 5-FU), liquid nitrogen, photodynamic therapy, Retin-A, and laser surgery are clearly explained. Methods to diagnose actinic keratoses and precancers including naked eye detection and skin biopsy methods are approached in-depth. Suggestions and new findings regarding sunscreens and their relationships to precancer are made.   © 1997-2003, Paul J. Weber, M.D., P.A., All Rights Reserved