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Dark Internal Septations (MR)
Katie M. Davis, DO; Wendie A. Berg, MD, PhD, FACR, FSBI
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Diagnostic Checklist

            TERMINOLOGY

            • Definitions

              • Nonenhancing internal septations: Hypointense, nonenhancing, linear or curvilinear structures within enhancing mass

            IMAGING

            • General Features

              • Mammographic Findings

                • Ultrasonographic Findings

                  • MR Findings

                    • Imaging Recommendations

                      DIFFERENTIAL DIAGNOSIS

                        PATHOLOGY

                        • General Features

                          • Gross Pathologic & Surgical Features

                            • Microscopic Features

                              CLINICAL ISSUES

                              • Presentation

                                • Demographics

                                  • Natural History & Prognosis

                                    DIAGNOSTIC CHECKLIST

                                    • Consider

                                      • Image Interpretation Pearls

                                        Selected References

                                        1. Igarashi T et al: Use of BI-RADS-MRI descriptors for differentiation between mucinous carcinoma and fibroadenoma. Eur J Radiol. 85(6):1092-8, 2016
                                        2. Kamitani T et al: Differentiation between benign phyllodes tumors and fibroadenomas of the breast on MR imaging. Eur J Radiol. 83(8):1344-9, 2014
                                        3. Rodríguez MC et al: Best cases from the AFIP: intracystic papillary carcinoma of the breast. Radiographics. 30(7):2021-7, 2010
                                        4. Yoo JL et al: Can MR Imaging contribute in characterizing well-circumscribed breast carcinomas? Radiographics. 30(6):1689-702, 2010
                                        5. Okafuji T et al: Circumscribed mass lesions on mammography: dynamic contrast-enhanced MR imaging to differentiate malignancy and benignancy. Magn Reson Med Sci. 7(4):195-204, 2008
                                        6. Schnall MD et al: Diagnostic architectural and dynamic features at breast MR imaging: multicenter study. Radiology. 238(1):42-53, 2006
                                        7. Kuhl CK et al: Dynamic bilateral contrast-enhanced MR imaging of the breast: trade-off between spatial and temporal resolution. Radiology. 236(3):789-800, 2005
                                        8. Tozaki M et al: High-spatial-resolution MR imaging of focal breast masses: interpretation model based on kinetic and morphological parameters. Radiat Med. 23(1):43-50, 2005
                                        9. Wurdinger S et al: Differentiation of phyllodes breast tumors from fibroadenomas on MRI. AJR Am J Roentgenol. 185(5):1317-21, 2005
                                        10. Daniel B et al: Magnetic Resonance Imaging of Breast Cancer and MRI-guided Breast Biopsy. In Ikeda DM: Breast Imaging: The Requisites. Philadelphia: Elsevier Mosby, 2004
                                        11. Nunes LW et al: Update of breast MR imaging architectural interpretation model. Radiology. 219(2):484-94, 2001
                                        12. Hochman MG et al: Fibroadenomas: MR imaging appearances with radiologic-histopathologic correlation. Radiology. 204(1):123-9, 1997
                                        Related Anatomy
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                                        Related Differential Diagnoses
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                                        References
                                        Tables

                                        Tables

                                        KEY FACTS

                                        • Terminology

                                          • Imaging

                                            • Top Differential Diagnoses

                                              • Pathology

                                                • Diagnostic Checklist

                                                  TERMINOLOGY

                                                  • Definitions

                                                    • Nonenhancing internal septations: Hypointense, nonenhancing, linear or curvilinear structures within enhancing mass

                                                  IMAGING

                                                  • General Features

                                                    • Mammographic Findings

                                                      • Ultrasonographic Findings

                                                        • MR Findings

                                                          • Imaging Recommendations

                                                            DIFFERENTIAL DIAGNOSIS

                                                              PATHOLOGY

                                                              • General Features

                                                                • Gross Pathologic & Surgical Features

                                                                  • Microscopic Features

                                                                    CLINICAL ISSUES

                                                                    • Presentation

                                                                      • Demographics

                                                                        • Natural History & Prognosis

                                                                          DIAGNOSTIC CHECKLIST

                                                                          • Consider

                                                                            • Image Interpretation Pearls

                                                                              Selected References

                                                                              1. Igarashi T et al: Use of BI-RADS-MRI descriptors for differentiation between mucinous carcinoma and fibroadenoma. Eur J Radiol. 85(6):1092-8, 2016
                                                                              2. Kamitani T et al: Differentiation between benign phyllodes tumors and fibroadenomas of the breast on MR imaging. Eur J Radiol. 83(8):1344-9, 2014
                                                                              3. Rodríguez MC et al: Best cases from the AFIP: intracystic papillary carcinoma of the breast. Radiographics. 30(7):2021-7, 2010
                                                                              4. Yoo JL et al: Can MR Imaging contribute in characterizing well-circumscribed breast carcinomas? Radiographics. 30(6):1689-702, 2010
                                                                              5. Okafuji T et al: Circumscribed mass lesions on mammography: dynamic contrast-enhanced MR imaging to differentiate malignancy and benignancy. Magn Reson Med Sci. 7(4):195-204, 2008
                                                                              6. Schnall MD et al: Diagnostic architectural and dynamic features at breast MR imaging: multicenter study. Radiology. 238(1):42-53, 2006
                                                                              7. Kuhl CK et al: Dynamic bilateral contrast-enhanced MR imaging of the breast: trade-off between spatial and temporal resolution. Radiology. 236(3):789-800, 2005
                                                                              8. Tozaki M et al: High-spatial-resolution MR imaging of focal breast masses: interpretation model based on kinetic and morphological parameters. Radiat Med. 23(1):43-50, 2005
                                                                              9. Wurdinger S et al: Differentiation of phyllodes breast tumors from fibroadenomas on MRI. AJR Am J Roentgenol. 185(5):1317-21, 2005
                                                                              10. Daniel B et al: Magnetic Resonance Imaging of Breast Cancer and MRI-guided Breast Biopsy. In Ikeda DM: Breast Imaging: The Requisites. Philadelphia: Elsevier Mosby, 2004
                                                                              11. Nunes LW et al: Update of breast MR imaging architectural interpretation model. Radiology. 219(2):484-94, 2001
                                                                              12. Hochman MG et al: Fibroadenomas: MR imaging appearances with radiologic-histopathologic correlation. Radiology. 204(1):123-9, 1997