Source:http://linkedlifedata.com/resource/umls/id/C0334257
NCI: A variant of basal cell carcinoma presenting as a pale, indurated plaque, usually in the upper trunk or face. Morphologically, it is characterized by the presence of strands, cords, and columns of basaloid cells infiltrating the dermis. Perineural invasion may be present and the basaloid cell infiltrate may extend into deeper tissues.