Abstract
Introduction: The early diagnosis of breast carcinoma is of paramount importance in its management. Fine-needle aspiration cytology (FNAC) has the potential to play a pivotal role in providing the relevant information on the aggressiveness of this tumor. But there is no gold standard when it comes to cytological grading of breast carcinoma as there is no consensus between the pathologists and also the clinicians as to which grading is as par with the gold standard Elston-Ellis modification of Scarff-Bloom-Richardson (SBR) histological grading. This study was undertaken to study seven cytological 3-tier grading systems, namely, Robinson’s, Fisher’s, Mouriquand’s, Dabbs’, Khan’s, Taniguchi’s, and Howells’s and to correlate them with the Elston-Ellis modification of SBR histological grading system so as to determine the finest cytological grading system which could be reliably used in our routine practice. Material and Methods: A total of 117 breast carcinoma cases diagnosed on FNAC were graded using seven 3-tier cytological grading systems and were correlated with Elston-Ellis modification of SBR histological grading system. Concordance, kappa measurement, and various correlation studies were done using SPSS software version 2021. Results: Robinson’s method showed a better concordance (84.61%), a better correlation (Spearman = 0.750, τ = 0.731, p < 0.001), and a substantial kappa value of agreement (κ = 0.701) with SBR grading system compared to other system closely followed by Fisher’s system. Conclusions: Even though all the seven 3-tier cytological grading systems positively correlated with the SBR histologic grading of breast carcinoma, Robinson’s method showed better concordance and correlation with a substantial kappa value of agreement in comparison to other 3-tier cytology grading systems. Hence, Robinson’s grading which is simpler and also feasible should be incorporated in the routine cytology reporting of breast carcinoma.
Journal Section:
Fine Needle Aspiration
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