Breast ultrasonography (US) has gained acceptance as a diagnostic tool for the evaluation of breast diseases that are obscured by dense breast tissue in mammography can be detected with Ultrasonogram. Study aimed to evaluate the correlation of the US findings including shape, boundary zone, internal and posterior echo, anterior and posterior borders, estimated histological types and carcinoma infiltration with their corresponding histopathological findings of the breast lesions. Material and methods: This was a hospital-based retrospective study which was carried out at department of radiology, Fathima Institute of Medical Sciences, Kadapa, Andhra Pradesh, during the period from March 2016 to December 2017. A sample size of 50 breast lesions was used for analysis and the protocol was approved by ethics committee. Results: The overall detection rate of carcinoma extension by US was 86% (43 out of the 50 tumors). 5 out of the 7 tumors (71.4%) in which US could not detect carcinoma extension demonstrated low-grade intraductal components, and these lesions were also, 1 mm in diameter. 1 out of these 7 cases turned out to be invasive ILC in which carcinoma cells invaded with forming single cell pattern and small LCIS extension. Conclusion: US cannot define the extension of carcinoma preoperatively, correlating US findings with histopathologic features of carcinoma cells can determine the extension of carcinoma.
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