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HISTOPATHOLOGY SECTION - ORIGINAL ARTICLE
Year : 2008  |  Volume : 51  |  Issue : 1  |  Page : 17-21

A study of proliferative activity, angiogenesis and nuclear grading in renal cell carcinoma


1 Department of Pathology, Medical College, Kolkata, India
2 Department of Pathology, Institute of Postgraduate Medical Education and Research (IPGMER) and SSKM Hospital, Kolkata, West Bengal, India
3 Department of Urology, Institute of Postgraduate Medical Education and Research (IPGMER) and SSKM Hospital, Kolkata, West Bengal, India

Correspondence Address:
N K Bhattacharyya
Department of Pathology, Medical College, Kolkata, West Bengal
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0377-4929.40384

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To evaluate the role of proliferative marker, proliferating cell nuclear antigen (PCNA) and microvessel density (MVD) as prognostic markers in renal cell carcinoma (RCC) and to see their relationship with the clinical stage and nuclear grades, we studied 30 cases of RCC for nuclear grading (Fuhrman's nuclear grade), MVD (using anti CD-34 antibody), and PCNA labeling index (using anti-PCNA antibody) over a period of 2.5 years. Staging was assessed by peroperative and radiologic findings. The area of highest MVD within the tumor was selected for microvessel count (MVC) per high-power field (0.1885 mm 2 area). PCNA labeling index was determined by counting percentage of positively stained tumor cell nuclei. PCNA labeling index above 60% was taken as high PCNA index and up to 60% was considered low. There was significant positive correlation between PCNA labeling index with both nuclear grade and clinical stage using Spearman's correlation coefficient. No association was noted between MVC with PCNA, nuclear grade, and clinical stages. Evaluation of proliferative status of RCC is a useful adjunct as a prognostic parameter as it is seen to correlate well with both clinical stage and nuclear grade. In our study, MVD was not seen to correlate with either of these.


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