title: Infiltrative basal cell carcinoma: a nonsclerosing subtype.
abstract: Infiltrative basal cell carcinoma is a distinct histologic subtype of basal cell carcinoma (BCC). Criteria for its diagnosis are presented and its nonsclerotic nature emphasized. Analysis of 174 consecutive BCCs referred for Mohs micrographic surgery showed the infiltrative subtype (29 tumors) to be significantly more destructive and difficult to treat than the more common nodular BCC.
mesh_terms: D002280:Basal Cell Carcinoma / Q000473:pathology*; D002454:Cell Differentiation; D003094:Collagen / Q000032:analysis; D006801:Humans; D012598:Sclerosis; D012878:Skin Neoplasms / Q000473:pathology*
chemical_list: D003094:Collagen