title: When melanoma is negative for S100: diagnostic pitfalls.
authors.forename: Nicole D
authors.initials: ND
authors.lastname: Riddle
authors.forename: Marilyn M
authors.initials: MM
authors.lastname: Bui
mesh_terms: D000328:Adult; D019002:CD56 Antigen / Q000032:analysis; D002864:Chromogranins / Q000032:analysis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D007633:Keratins / Q000032:analysis; D008198:Lymph Nodes / Q000473:pathology*; D008207:Lymphatic Metastasis; D008545:Melanoma / Q000175:diagnosis / Q000378:metabolism* / Q000556:secondary*; D009418:S100 Proteins / Q000032:analysis*
chemical_list: D019002:CD56 Antigen; D002864:Chromogranins; D009418:S100 Proteins; D007633:Keratins