Argyrophilia in nucleolar organizer regions (AgNOR) in adenoid cystic carcinoma and polymorphous low-grade adenocarcinoma of the salivary glands.
Nine cases of adenoid cystic carcinomas (ACC) and three cases of polymorphous low-grade adenocarcinomas (PLGA) of the salivary glands from the Surgical Oral Pathology Service of the University of São Paulo School of Dentistry were examined by means of the silver-staining nucleolar organizer regions (AgNOR) technique. Quantitative and dimensional analyses of NORs were carried out. Our findings suggest that solid and cribriform patterns of ACC have a higher cellular activity than that presented by tubular ACC and PLGA.
Freitas
R A
RA
Department of Oral Pathology, School of Dentistry, Federal University of Rio Grande do Norte, Brazil.
de Araújo
V C
VC
Araújo
N S
NS
D000230:Adenocarcinoma / Q000473:pathology / Q000648:ultrastructure*; D008949:Adenoma, Pleomorphic / Q000473:pathology / Q000648:ultrastructure; D003528:Carcinoma, Adenoid Cystic / Q000473:pathology / Q000648:ultrastructure*; D006801:Humans; D009687:Nuclear Proteins / Q000032:analysis; D009697:Nucleolus Organizer Region / Q000648:ultrastructure*; D011379:Prognosis; D012468:Salivary Gland Neoplasms / Q000473:pathology / Q000648:ultrastructure*; D012834:Silver; D013194:Staining and Labeling
D009687:Nuclear Proteins; D012834:Silver