title: Desmoplastic cellular blue nevi.
abstract: We describe five cases of cellular blue nevus (CBN) accompanied by an abundant desmoplastic reaction. The cells within the desmoplastic regions reacted strongly immunohistochemically with antibodies to S-100 protein and HMB-45 and were negative to antibodies to smooth muscle actin and desmin, providing evidence that the abundant collagen deposits were the product of the nevus cells. The microscopic picture of desmoplastic CBN can differ considerably from that of common CBN, and differential diagnosis is discussed.
authors.affiliation: Sikls Department of Pathology, Medical Faculty, Charles University, Pilsen, Czech Republic.
authors.forename: M
authors.initials: M
authors.lastname: Michal
authors.forename: Z
authors.initials: Z
authors.lastname: Kerekes
authors.forename: Z
authors.initials: Z
authors.lastname: Kinkor
authors.forename: F
authors.initials: F
authors.lastname: Ondriás
authors.forename: K
authors.initials: K
authors.lastname: Pizinger
mesh_terms: D000199:Actins / Q000032:analysis; D000293:Adolescent; D000328:Adult; D000951:Antigens, Neoplasm / Q000032:analysis; D000954:Antigens, Surface / Q000032:analysis; D003094:Collagen; D003893:Desmin / Q000032:analysis; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008543:Melanins / Q000032:analysis; D058950:Melanoma-Specific Antigens; D009363:Neoplasm Proteins / Q000032:analysis; D009455:Neurofibroma / Q000473:pathology; D018329:Nevus, Blue / Q000473:pathology*; D009418:S100 Proteins / Q000032:analysis; D012878:Skin Neoplasms / Q000473:pathology*
chemical_list: D000199:Actins; D000951:Antigens, Neoplasm; D000954:Antigens, Surface; D003893:Desmin; D008543:Melanins; D058950:Melanoma-Specific Antigens; D009363:Neoplasm Proteins; D009418:S100 Proteins; D003094:Collagen