title: Peanut agglutinin immunohistochemistry of basal cell carcinoma.
abstract: 103 biopsies of basal cell carcinomas (BCCs) were studied using peanut agglutinin (PNA), PNA antibody and the peroxidase-antiperoxidase technique; 53 specimens of various skin tumors were examined as controls; 96% of the BCCs showed a band-like peritumorous reaction not seen in any other tumor except for the Pinkus' fibroepithelioma. The peritumorous PNA-binding was continuous in 51% of the BCCs studied and discontinuous in 45%; only 4% were completely negative. Both fibroepitheliomas revealed a discontinuous PNA-positive band. A narrow basement membrane-like positivity was seen around some small hair follicles situated within 2 neurofibromas and under one seborrhoeic keratosis. The PNA-binding band is apparently neither fibronectin, laminin, Type IV or Type V collagen and is not a constituent of normal epidermal, adnexal and vascular basement membranes.
authors.forename: N
authors.initials: N
authors.lastname: Vigneswaran
authors.forename: E
authors.initials: E
authors.lastname: Haneke
authors.forename: K P
authors.initials: KP
authors.lastname: Peters
mesh_terms: D001485:Basement Membrane / Q000378:metabolism / Q000473:pathology; D001665:Binding Sites; D002280:Basal Cell Carcinoma / Q000378:metabolism* / Q000473:pathology; D006651:Histocytochemistry; D006801:Humans; D007124:Immunoenzyme Techniques; D037102:Lectins / Q000378:metabolism*; D019887:Peanut Agglutinin; D012867:Skin / Q000378:metabolism / Q000473:pathology; D012871:Skin Diseases / Q000378:metabolism / Q000473:pathology; D012878:Skin Neoplasms / Q000378:metabolism* / Q000473:pathology
chemical_list: D037102:Lectins; D019887:Peanut Agglutinin