Mammographic and sonographic features of fat necrosis of the breast

• Main Authors: Vidya S Upadhyaya, Raghuraj Uppoor, Lathika Shetty
• Format: Article
• Language: English
• Published: Thieme Medical and Scientific Publishers Pvt. Ltd. 2013-10-01
• Series: Indian Journal of Radiology and Imaging
• Subjects: breast lump; complex nodule; fat necrosis; imaging; solid nodule
• Online Access: http://www.thieme-connect.de/DOI/DOI?10.4103/0971-3026.125619

Imaging features of fat necrosis vary depending on its stage of evolution and can mimic malignancy in late stages. Imaging may suffice to differentiate fat necrosis in the early stages from malignancy and thus avoid unnecessary biopsy. In this pictorial essay, we present combination of benign features in mammography and/or ultrasonography (USG) that can lead to imaging diagnosis of fat necrosis. The follow-up imaging features of fat necrosis which mirror its pathophysiological evolution have also been demonstrated. To summarize, in the appropriate clinical setting, no mammographic features suspicious for malignancy should be present. When the typical mammographic features are not present, USG can aid with the diagnosis and follow up USG can confirm it.