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Broder versus Bryne's histologic grading parameters on incision biopsy specimens: A comparative study with P53 and
Gopikrishnan Vijayakumar1, Gitika Sharma1, Anjali Narwal1
1Department of Oral and Maxillofacial Pathology and Oral Microbiology, Post Graduate Institute of Dental Sciences, Rohtak, Haryana, India.
Objective:
Various histological grading of oral squamous cell carcinoma has been contributed to the literature at different periods, but the reliability of such grading systems is controversial. This study attempted to measure the efficacy of Bryne's parameters on the full thickness of incisional biopsies which are representative of the original lesion with the proven molecular malignancy markers P53 and Ki67.
Materials And Methods:
One hundred incisional biopsy specimens of oral squamous cell carcinoma were obtained and histologically graded according to Broder's grading system. The same was graded using Bryne's parameters on full thickness of obtained incision sample. Immunohistochemistry was carried out for both p53 and Ki67.
Results:
We found a high discrepancy in the grading of lesions with Broader as well as Bryne grading parameters within the same lesion. When compared with the molecular expression percentages of p53 and Ki67, highly significant correlation was found in Bryne's parameters (Pearson Chi-square, P value 0.000) in incisional biopsies than Broder's.
Conclusion:
The use of parameters by Bryne on invasive front of excision biopsies can provide significant grading on incisional biopsies which are more comparable to the molecular behavior of tumor given by the p53 and Ki67 expression.
