To review benign lesions that can mimic breast cancer. 
 To explain the radiologic features and management of these benign entities. To stand out the importance of radiopathological correlation in order to narrow the differential diagnosis and avoid unnecessary surgical excision and ease patient fears.

Benign breast lesions may present with malignant imaging features and mimic carcinoma. We present cases of lesions initially assessed as suspicious on different imaging modalities according to the American College of Radiology Breast Imaging Reporting and Data System (BIRADS). Because of their suspicious imaging features a core needle biopsy was done and then proved to be benign on pathologic study. These benign conditions can present with imaging features of breast cancer like masses or architectural distortion on mammography, ultrasound or MRI. Mammographic features predictive of...

A) IATROGENIC OR TRAUMA-RELATED BREAST LESIONS a. Fat necrosis Fat necrosis is a benign process due to previous trauma or surgery. Clinical presentation is extremely variable; there may be asymptomatic or palpable masses that can be firm and fixed, even with cutaneous changes. Typical imaging findings are oil cysts with rim calcification on mammography. However, it may appear as a spiculated or irregular mass or asymmetry. US findings spectrum is also variable. US can show an irregular hypoechoic mass, complex cystic and solid masses. MRI...

Breast radiologist must be acquainted with no malignant pathology although cancer must always be excluded so that the final diagnosis is usually given by the biopsy and a correct radio-pathological correlation is needed. Familiarity with these benign breast lesions increases radiologist’s confidence after a needle biopsy, avoids aggressive surgical interventions and allows the correct management and follow up of the patient.

Malik N, Lad S, Seely JM, Schweitzer ME. Underestimation of malignancy in biopsy-proven cases of stromal fibrosis. Br J Radiol 2014;87:20140182. Freeman CM, Xia BT, Wilson GC, Lewis JD, Khan S, Lee SJ, Lower EE, Edwards MJ, Shaughnessy EA. Idiopathicgranulomatous mastitis: A diagnostic and therapeutic challenge. Am J Surg. 2017 Oct;214(4):701-706. Gity M et al. Magnetic Resonance imaging features of Adenosis in the breast. JBreastCancer 2015 Jun;18(2):187-94. Taşkin F, Köseoğlu K, Unsal A, Erkuş M, Ozbaş S, Karaman C. Sclerosing adenosis of the breast: radiologic...