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An Official Publication of the Indian Association of Oral and Maxillofacial Pathologists


 
ORIGINAL ARTICLE Table of Contents   
Year : 2010  |  Volume : 14  |  Issue : 2  |  Page : 52-58
Early detection of oral cancer: PAP and AgNOR staining in brush biopsies


1 Department of Oral Pathology and Microbiology, YCMM and RDF's Dental College and Hospital, Wadgaon Gupta MIDC, Ahmednagar - 414001, India
2 Department of Oral Pathology and Microbiology, Government Dental College and Hospital, Mumbai - 400001, Maharashtra, India

Correspondence Address:
Jagdish V Tupkari
R. No. 301, Department of Oral Pathology and Microbiology, Government Dental College and Hospital, Mumbai - 400001
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0973-029X.72501

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Aim: The aim of this study was to determine the diagnostic accuracy of routine Papanicolaou stain (PAP) and Silver stained Nucleolar Organizer Regions (AgNOR) staining in brush biopsies taken from suspected oral lesions for early detection of oral cancer. Materials and Methods: Brush biopsies were collected from macroscopically suspicious lesions of the oral cavity of 34 patients and 10 normal-aged and sex-matched controls. The numbers of AgNORs were counted in 100 squamous epithelial cell nuclei per slide after silver staining of the smears (Ploton's one-step method). Results: Sensitivity and specificity of PAP analysis in the oral smears for detection of oral cancer and normal cells was 91.176% and 100%. The positive and negative prediction values were 100% and 76.92%, respectively. Sensitivity and specificity of AgNOR analysis in the oral smears for detection of oral cancer and normal cells was 100%. The positive and negative prediction values were 100% each. Conclusion: Based on the above facts, we conclude that brush biopsy in conjunction with AgNOR staining is an easily practicable, non-invasive, safe and accurate screening method for the detection of macroscopically suspicious oral cancerous lesions. Because of its simple technique and high reliability for cellular proliferation, AgNOR staining in brush smears can be used as an adjunct to other routine cytological diagnoses for the early detection of oral cancer. However, further investigations with more number of study samples will be needed to establish this correlation beyond doubt.


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Journal of Oral and Maxillofacial Pathology | Published by Wolters Kluwer - Medknow
Online since 15th Aug, 2007