Basal cell carcinomas are currently considered to have origin from the folliculo-sebaceous-apocrine germ, also known as trichoblast. The differential diagnosis with trichoblastic carcinoma, a rare malignant form of trichoblastoma, can be challenging. Alternatively, one argument is that basal cell carcinoma is trichoblastic carcinoma. Overexposure to sun leads to the formation of thymine dimers, a form of DNA damage.
Carson, Washington. Carson is a small community within Carson River Valley CDP in Skamania County in the southwestern part of the U.S. state of Washington.
Carson, California. Carson: Carson City Hall at the corner of Carson St. and Avalon Blvd. Carson: i-405 Atlantic Avenue has a place as an historic route of significance for the Los Angeles Area. At one time, Atlantic Avenue was a state route (California 15), and it served as the endpoints for two former U.S. routes.