Precancers

Scheduling a yearly skin examination with
HAIKEN DERMATOLOGY
may help you detect precancers before they become malignant:

Actinic keratosis is the most common precancer; it affects more than 58 million Americans.
Approximately 65 percent of all squamous cell carcinomas and 36 percent of all basal cell carcinomas arise in lesions that previously were diagnosed as actinic keratoses.
About 90 percent of nonmelanoma skin cancers are associated with exposure to ultraviolet (UV) radiation from the sun.

More than 90 percent of the visible changes commonly attributed to skin aging are caused by the sun.
Contrary to popular belief, 80 percent of a person’s lifetime sun exposure is not acquired before age 18; only about 23 percent of lifetime exposure occurs by age 18.

Ages	Average Accumulated Exposure*
1-18	22.73 percent
19-40	46.53 percent
41-59	73.7 percent
60-78	100 percent

*Based on a 78 year lifespan

The Lewen Group, Inc. The burden of skin diseases 2005. The Society for Investigative Dermatology and The American Academy of Dermatology Association. 2005.
Criscione, VD, Weinstock, MA, Naylor, MF, Luque, C, Eide, MJ and Bingham, SF. Actinic keratoses natural history and risk of malignant transformation in the Veterans Affairs Tropical Tretinoin Chemoprevention Trial. Cancer 2009; 115: 2523-2530.
Koh HK, Geller AC, Miller DR, Grossbart TA, Lew RA. Prevention and early detection strategies for melanoma and skin cancer: Current status. Archives of Dermatology. 1996; 132: 436-442
Godar DE, Urbach F, Gasparro FP, Van der Leun JC. UV doses of young adults. Photochem Photobiol 2003; . 77(4):453-457.
Gilchrest BA. Skin and aging process. CRC Press. 1984; 124.