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.
City of Ellensburg. Ellensburg is a city in, and the county seat of, Kittitas County, Washington, United States. The population was 18,174 at the 2010 census. Ellensburg is located just east of the Cascade Range on Interstate 90 and is known as the most centrally located city in the state. Ellensburg is the home of Central Washington University (CWU).