228CLINICAL APPLICATIONS OF ULTRASOUND (US) ELASTOGRAPHY IN DIAGNOSING BREAST DISEASESUltrasound (US) elastography is a tool that reflects the hardness of a lesion, and a recent study using the currently available US technology has shown that elastography has nearly the same diagnostic performance as conventional US, with 86.5% (45 of 52) sensitivity, 89.8% (53 of 59) specificity, and 88.3% (98 of 111) accuracy in the differentiating benign from malignant solid breast masses. Generally, breast cancer tissue is harder than the adjacent normal breast tissue. This property serves as the basis for some examinations, such as palpation, that are currently being used in the clinical assessment of breast abnormalities, as well as for elastography. The purpose of our study was to evaluate the diagnostic performance of real-time freehand elastography by using the extended CAM to differentiate benign from malignant breast lesions, with pathologic diagnosis as the reference standard. It consisted of 86 consecutive women who has visited the department with suspect of breast cancer. The test was carried out using US elastogrpahy in all the patients and was evaluated for the outcome. Benign lesions among study population, ANDI (aberrations of normal development and involution without fibroadenoma, like- duct papillomatosis, sclerosing adenosis, and lobular hyperplasia was seen in 12 patients. Presented with fibroedenoma were of 8, intraductal papilloma in 6, complex cyst in 4, benign phyllodes tumor in 1 patient and no patient was presented with lobular carcinoma in situ and granuloma. We believe and like to put forward that elastography can be used as a complement conventional Ultrasound which makes it simple and easy in diagnosing lesions like in breast cancer. However, more knowledge and accuracy specific training is also required for evaluating the outcomes in elastography. Thus, elastography is the most useful tool in future for its accuracy in evaluating breast diseases in the clinical settings.hariputte@gmail.comResearch1112021Ultrasound,US elastogrpahy,Breast cancerDr Harish KAssociate Professor, Department of Radiology, Sri Lakshmi Narayana Institute of Medical Sciences, Kudapakkam Post, Puducherry- 605502, India