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Breast
Lesion Imaging Characteristics
Masses
Fat-Containing Mass
Fat-Containing Mass
Ethan O. Cohen, MD; Rosalind Candelaria, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Clinical Issues

          TERMINOLOGY

          • Definitions

            • Definition: Mass containing variable portion of fat

          IMAGING

          • General Features

            • Mammographic Findings

              • Ultrasonographic Findings

                • MR Findings

                  • Imaging Recommendations

                    DIFFERENTIAL DIAGNOSIS

                      PATHOLOGY

                      • Gross Pathologic & Surgical Features

                        CLINICAL ISSUES

                        • Presentation

                          • Natural History & Prognosis

                            • Treatment

                              DIAGNOSTIC CHECKLIST

                              • Consider

                                • Image Interpretation Pearls

                                  Selected References

                                  1. Hicks DG et al: Lipoma and Angiolipoma in Diagnostic Pathology: Breast, 2nd ed. Philadelphia: Elsevier, 2016
                                  2. Kerridge WD et al: Fat necrosis of the breast: A pictorial review of the mammographic, ultrasound, CT, and MRI findings with histopathologic correlation. Radiol Res Pract. 2015:613139, 2015
                                  3. Riley MP et al: Mammary hibernoma: A rare entity. Arch Pathol Lab Med. 139(12):1565-7, 2015
                                  4. Freer PE et al: Digital breast tomosynthesis in the analysis of fat-containing lesions. Radiographics. 34(2):343-58, 2014
                                  5. Gao Y et al: Echogenic breast masses at US: to biopsy or not to biopsy? Radiographics. 33(2):419-34, 2013
                                  6. Vashi R et al: Breast imaging of the pregnant and lactating patient: physiologic changes and common benign entities. AJR Am J Roentgenol. 200(2):329-36, 2013
                                  7. Vlahovic A et al: Galactocele in male infants: report of two cases and review of the literature. Eur J Pediatr Surg. 22(3):246-50, 2012
                                  8. Erdem G et al: Advanced MRI findings in patients with breast hamartomas. Diagn Interv Radiol. 17(1):33-7, 2011
                                  9. Valero MG et al: Atypical lipomatous tumor of the breast. J Clin Oncol. 29(31):e766-8, 2011
                                  10. Martini N et al: An unusual breast lesion: the ultrasonographic, mammographic, MRI and nuclear medicine findings of mammary hibernoma. Br J Radiol. 83(985):e1-4, 2010
                                  11. Chun YS et al: Hyperprolactinemia and galactocele formation after augmentation mammoplasty. Ann Plast Surg. 62(2):122-3, 2009
                                  12. Taboada JL et al: The many faces of fat necrosis in the breast. AJR Am J Roentgenol. 192(3):815-25, 2009
                                  13. Daly CP et al: Variable appearances of fat necrosis on breast MRI. AJR Am J Roentgenol. 191(5):1374-80, 2008
                                  14. Edeiken-Monroe BS et al: Metastases to intramammary lymph nodes in patients with breast cancer: sonographic findings. J Clin Ultrasound. 36(5):279-85, 2008
                                  15. Chao TC et al: Sonographic features of breast hamartomas. J Ultrasound Med. 26(4):447-52; quiz 453, 2007
                                  16. Sabate JM et al: Radiologic evaluation of breast disorders related to pregnancy and lactation. Radiographics. 27 Suppl 1:S101-24, 2007
                                  17. Chala LF et al: Fat necrosis of the breast: mammographic, sonographic, computed tomography, and magnetic resonance imaging findings. Curr Probl Diagn Radiol. 33(3):106-26, 2004
                                  18. Gaskin CM et al: Lipomas, lipoma variants, and well-differentiated liposarcomas (atypical lipomas): results of MRI evaluations of 126 consecutive fatty masses. AJR Am J Roentgenol. 182(3):733-9, 2004
                                  19. Lanng C et al: Lipoma of the breast: a diagnostic dilemma. Breast. 13(5):408-11, 2004
                                  20. Park KY et al: Steatocystoma multiplex: mammographic and sonographic manifestations. AJR Am J Roentgenol. 180(1):271-4, 2003
                                  21. Park SY et al: Sonographic findings of breast hamartoma: emphasis on compressibility. Yonsei Med J. 44(5):847-54, 2003
                                  22. Sawhney S et al: Sonographic appearances of galactoceles. J Clin Ultrasound. 30(1):18-22, 2002
                                  23. Bilgen IG et al: Fat necrosis of the breast: clinical, mammographic and sonographic features. Eur J Radiol. 39(2):92-9, 2001
                                  24. Wahner-Roedler DL et al: Hamartomas of the breast: clinical, radiologic, and pathologic manifestations. Breast J. 7(2):101-5, 2001
                                  Related Anatomy
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                                  Related Differential Diagnoses
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                                  References
                                  Tables

                                  Tables

                                  KEY FACTS

                                  • Terminology

                                    • Imaging

                                      • Top Differential Diagnoses

                                        • Clinical Issues

                                          TERMINOLOGY

                                          • Definitions

                                            • Definition: Mass containing variable portion of fat

                                          IMAGING

                                          • General Features

                                            • Mammographic Findings

                                              • Ultrasonographic Findings

                                                • MR Findings

                                                  • Imaging Recommendations

                                                    DIFFERENTIAL DIAGNOSIS

                                                      PATHOLOGY

                                                      • Gross Pathologic & Surgical Features

                                                        CLINICAL ISSUES

                                                        • Presentation

                                                          • Natural History & Prognosis

                                                            • Treatment

                                                              DIAGNOSTIC CHECKLIST

                                                              • Consider

                                                                • Image Interpretation Pearls

                                                                  Selected References

                                                                  1. Hicks DG et al: Lipoma and Angiolipoma in Diagnostic Pathology: Breast, 2nd ed. Philadelphia: Elsevier, 2016
                                                                  2. Kerridge WD et al: Fat necrosis of the breast: A pictorial review of the mammographic, ultrasound, CT, and MRI findings with histopathologic correlation. Radiol Res Pract. 2015:613139, 2015
                                                                  3. Riley MP et al: Mammary hibernoma: A rare entity. Arch Pathol Lab Med. 139(12):1565-7, 2015
                                                                  4. Freer PE et al: Digital breast tomosynthesis in the analysis of fat-containing lesions. Radiographics. 34(2):343-58, 2014
                                                                  5. Gao Y et al: Echogenic breast masses at US: to biopsy or not to biopsy? Radiographics. 33(2):419-34, 2013
                                                                  6. Vashi R et al: Breast imaging of the pregnant and lactating patient: physiologic changes and common benign entities. AJR Am J Roentgenol. 200(2):329-36, 2013
                                                                  7. Vlahovic A et al: Galactocele in male infants: report of two cases and review of the literature. Eur J Pediatr Surg. 22(3):246-50, 2012
                                                                  8. Erdem G et al: Advanced MRI findings in patients with breast hamartomas. Diagn Interv Radiol. 17(1):33-7, 2011
                                                                  9. Valero MG et al: Atypical lipomatous tumor of the breast. J Clin Oncol. 29(31):e766-8, 2011
                                                                  10. Martini N et al: An unusual breast lesion: the ultrasonographic, mammographic, MRI and nuclear medicine findings of mammary hibernoma. Br J Radiol. 83(985):e1-4, 2010
                                                                  11. Chun YS et al: Hyperprolactinemia and galactocele formation after augmentation mammoplasty. Ann Plast Surg. 62(2):122-3, 2009
                                                                  12. Taboada JL et al: The many faces of fat necrosis in the breast. AJR Am J Roentgenol. 192(3):815-25, 2009
                                                                  13. Daly CP et al: Variable appearances of fat necrosis on breast MRI. AJR Am J Roentgenol. 191(5):1374-80, 2008
                                                                  14. Edeiken-Monroe BS et al: Metastases to intramammary lymph nodes in patients with breast cancer: sonographic findings. J Clin Ultrasound. 36(5):279-85, 2008
                                                                  15. Chao TC et al: Sonographic features of breast hamartomas. J Ultrasound Med. 26(4):447-52; quiz 453, 2007
                                                                  16. Sabate JM et al: Radiologic evaluation of breast disorders related to pregnancy and lactation. Radiographics. 27 Suppl 1:S101-24, 2007
                                                                  17. Chala LF et al: Fat necrosis of the breast: mammographic, sonographic, computed tomography, and magnetic resonance imaging findings. Curr Probl Diagn Radiol. 33(3):106-26, 2004
                                                                  18. Gaskin CM et al: Lipomas, lipoma variants, and well-differentiated liposarcomas (atypical lipomas): results of MRI evaluations of 126 consecutive fatty masses. AJR Am J Roentgenol. 182(3):733-9, 2004
                                                                  19. Lanng C et al: Lipoma of the breast: a diagnostic dilemma. Breast. 13(5):408-11, 2004
                                                                  20. Park KY et al: Steatocystoma multiplex: mammographic and sonographic manifestations. AJR Am J Roentgenol. 180(1):271-4, 2003
                                                                  21. Park SY et al: Sonographic findings of breast hamartoma: emphasis on compressibility. Yonsei Med J. 44(5):847-54, 2003
                                                                  22. Sawhney S et al: Sonographic appearances of galactoceles. J Clin Ultrasound. 30(1):18-22, 2002
                                                                  23. Bilgen IG et al: Fat necrosis of the breast: clinical, mammographic and sonographic features. Eur J Radiol. 39(2):92-9, 2001
                                                                  24. Wahner-Roedler DL et al: Hamartomas of the breast: clinical, radiologic, and pathologic manifestations. Breast J. 7(2):101-5, 2001