Abstract
Introduction: Invasive carcinoma of the breast is one of the leading causes of death in women. In developing countries, fine needle aspiration cytology (FNAC) of the breast is used for preoperative diagnosis of breast cancer due to low cost. The grading system of breast carcinoma on FNAC is widely accepted. In the era of neoadjuvant therapy, if grading of breast carcinoma is incorporated in FNAC reports for prognostication, it will be of great help especially in patients with locally advanced disease, older patients with accompanying chronic disease and patients who reject surgery. Hence, there is much to be gained by grading a tumor on FNAC. Materials and methods: The present study was conducted on 40 cases of cytologically diagnosed breast carcinomas. Fine needle aspiration cytology smears were graded by Robinson cytological grading system. All surgical specimens were processed and the histological grading of the resulting slides was done by the Nottingham modification of Bloom Richardson score. Then, the cytological grade was compared with the histological grade and statistical analysis was done. Results:Based on Robinson grading method, cases were classified into grade I (15%), grade II (55%) and grade III (30%). Based on the Nottingham modification of Bloom Richardson (SBR) grading method, the cases were classified as grade I (5%) and grade II and III (47.5%) each. A total concordance rate between both the grading systems was seen in 65% of cases. A positive correlation was found and there was a significant association between Robinson cytological grading and SBR histological grading. Conclusions:Grading breast carcinoma on cytology allows its prognostic evaluation along with diagnostic value without any additional morbidity or expense to the patient. Thus, it is recommended to grade breast carcinomas on FNAC. It helps in deciding the proper line of treatment, so that patients can have a better prognosis.
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