Abstract
Benign and Malignant squamous cell tumours from pharynx and larynx have been studied by silver colloidal staining technique for quantitative analysis of argyrophilic nucleolar organizer regions (AgNOR) per nucleus and to assess its significance in differentiating the benign from malignant tumours. A total of 23 neoplasms including 8 squamous papillomas from larynx, 5 squamous cell cracinomas from larynx and 10 squamous carcinomas from pharynx have been studied. AgNOR count from benign papillomas showed a mean count of 2.56 whereas that in squamous cell carcinoma of Pharynx and larynx was 12.61 and 11.43 respectively. This simple staining method can be used to differentiate benign from malignant tumours in pharynx and larynx.
References
Bryan, R.L., Allock, R.A., Crocker, J. and Shenoi, P.M. (1989): Nucleolar organiser regions in squamous tumours of pharynx and larynx. Journal of Clinical Pathology 42: 218.
Bryan, R.L. and Crocker, J. (1989): Nucleolar organizer regions in kidney tumours and xanthogranulomatous pyelonephritis. Journal of Pathology. 157 : 168A.
Egan, M. J. and Crocker, J. (1988): Nucleolar organizer regions in cutaneous tumours. Journal of Pathology. 154 : 247.
Eskelinen, M.J., Lipponen, P.K., Collan, Y and Syrjinen, K.J. (1991): The role of nucleolar organizer regions as prognostic factors in breast Cancer. European Journal of Cancer 27 : 989.
Giri, D.D., Nottingham, J.F., Lawry, J., Dundas, S.A.C. and Underwood, J.C.E (1989): Silver binding nucleolar organizer regions (AgNORs) in benign and malignant breast lesions : Correlation with ploidy and growth phase by DNA flow cytometry. Journal of Pathology 157 : 307.
Hall, P.A., Crocker, J., Watts, A and Stransfield, A.G. (1988): A comparision of nucleolar organiser region staining and Ki 67 immunostaining in non-Hodgkin lymphoma. Histopathology 12 : 373.
Sundeep Reddy, G., Sesikeran, B and Shyamala Bhaskaran, C (1992): Nucleolar organizer regions in smooth muscle and breast tumours. Indian Journal of Pathology and Microbiology 35 : 219.
Smith, R. And Crocker, J. (1988): Evaluation of nucleolar organizer region associated proteins in breast malignancy. Histopathology 12 : 113.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Dasgupta, A., Ghosh, R.N., Sarkar, R. et al. Argyrophilic nucleolar organizer regions (AgNOR) in tumours of pharynx and larynx. IJO & HNS 48, 318–320 (1996). https://doi.org/10.1007/BF03048667
Issue Date:
DOI: https://doi.org/10.1007/BF03048667