<prompt> Answer this question truthfullyWhich diagnostic study is preferred for identifying breast lumps?  <response>: <reason> Mammography is the gold standard test for the diagnosis of breast lumps in women aged 40 years old. Ultrasound is the gold standard test for the diagnosis of breast lumps in women aged 40 years old. Management and medical therapy of breast lumps depends on womens age age 40 or age 40 and mammography results in women aged 40 years. In women aged 40 years; no further evaluation is needed in case of clearly benign mass in mammography; however, ultrasound imaging is required for the rest of the findings mammography. Approach to breast lumps in women 40 years is depended on breast imaging reporting and data systems BI-RADS stages. Medical therapy of breast lumps in women 40 years is depended on ultrasound results and BI-RADS categories. 