en Radiology Radiology case report case report Hamartoma of the breast is a rare benign breast lesion which is unfamiliar to most clinicians, although the mammographic features are usually characteristic. Hamartomas are composed of ducts, lobules, fat and fibrous tissue. These benign lesions are likely to be increasingly diagnosed because of routine screening and hence clinical awareness is paramount to prevent these lesions from being overtreated. A patient who presented with a soft mobile breast lump which was later diagnosed to be a giant breast hamartoma is presented along with a brief review of the current literature. 187 189 http://mjiri.iums.ac.ir/browse.php?a_code=A-10-298-341&slc_lang=en&sid=1 D FARROKH 20031947532846004458 20031947532846004458 Yes From the Department of Radiology, Imam Reza Medical Center, Mashhad University of Medical Sciences, Mashhad, Islamic Republic of Iran