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Seromucinous Tumors
Akram M. Shaaban, MBBCh; Christine O. Menias, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Pathology

        • Clinical Issues

          TERMINOLOGY

          • Definitions

            • Seromucinous tumors are ovarian epithelial neoplasms, 1st introduced in 2014 WHO Classification of Tumours of Female Reproductive Organs
              • They were further classified as benign (seromucinous cystadenoma/cystadenofibroma), borderline, and malignant (seromucinous carcinoma) tumors
            • Seromucinous carcinoma was removed from 2020 WHO classifications and is now considered subtype of endometrioid carcinoma

          IMAGING

          • General Features

            • CT Findings

              • MR Findings

                • Ultrasonographic Findings

                  DIFFERENTIAL DIAGNOSIS

                    PATHOLOGY

                    • General Features

                      • Staging, Grading, & Classification

                        • Gross Pathologic & Surgical Features

                          • Microscopic Features

                            CLINICAL ISSUES

                            • Presentation

                              • Demographics

                                • Natural History & Prognosis

                                  • Treatment

                                    DIAGNOSTIC CHECKLIST

                                    • Consider

                                      Selected References

                                      1. Ben-Mussa A et al: Ovarian seromucinous cystadenomas and adenofibromas: first report of a case series. Histopathology. 78(3):445-52, 2021
                                      2. Zheng X et al: Microcystic pattern and shadowing are independent predictors of ovarian borderline tumors and cystadenofibromas in ultrasound. Eur Radiol. 31(1):45-54, 2021
                                      3. Ando T et al: MR findings for differentiating decidualized endometriomas from seromucinous borderline tumors of the ovary. Abdom Radiol (NY). 45(6):1783-9, 2020
                                      4. Nagamine M et al: Ovarian seromucinous tumors: pathogenesis, morphologic spectrum, and clinical issues. Diagnostics (Basel). 10(2): 77, 2020
                                      5. Han JW et al: Newly categorized seromucinous tumor of the ovary: magnetic resonance imaging findings. J Comput Assist Tomogr. 43(1):119-27, 2019
                                      6. Kurata Y et al: Differentiation of seromucinous borderline tumor from serous borderline tumor on MR imaging. Magn Reson Med Sci. 17(3):211-7, 2018
                                      7. Hauptmann S et al: Ovarian borderline tumors in the 2014 WHO classification: evolving concepts and diagnostic criteria. Virchows Arch. 470(2):125-42, 2017
                                      8. Kurata Y et al: Diagnostic performance of MR imaging findings and quantitative values in the differentiation of seromucinous borderline tumour from endometriosis-related malignant ovarian tumour. Eur Radiol. 27(4):1695-703, 2017
                                      Related Anatomy
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                                      Related Differential Diagnoses
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                                      References
                                      Tables

                                      Tables

                                      KEY FACTS

                                      • Terminology

                                        • Imaging

                                          • Pathology

                                            • Clinical Issues

                                              TERMINOLOGY

                                              • Definitions

                                                • Seromucinous tumors are ovarian epithelial neoplasms, 1st introduced in 2014 WHO Classification of Tumours of Female Reproductive Organs
                                                  • They were further classified as benign (seromucinous cystadenoma/cystadenofibroma), borderline, and malignant (seromucinous carcinoma) tumors
                                                • Seromucinous carcinoma was removed from 2020 WHO classifications and is now considered subtype of endometrioid carcinoma

                                              IMAGING

                                              • General Features

                                                • CT Findings

                                                  • MR Findings

                                                    • Ultrasonographic Findings

                                                      DIFFERENTIAL DIAGNOSIS

                                                        PATHOLOGY

                                                        • General Features

                                                          • Staging, Grading, & Classification

                                                            • Gross Pathologic & Surgical Features

                                                              • Microscopic Features

                                                                CLINICAL ISSUES

                                                                • Presentation

                                                                  • Demographics

                                                                    • Natural History & Prognosis

                                                                      • Treatment

                                                                        DIAGNOSTIC CHECKLIST

                                                                        • Consider

                                                                          Selected References

                                                                          1. Ben-Mussa A et al: Ovarian seromucinous cystadenomas and adenofibromas: first report of a case series. Histopathology. 78(3):445-52, 2021
                                                                          2. Zheng X et al: Microcystic pattern and shadowing are independent predictors of ovarian borderline tumors and cystadenofibromas in ultrasound. Eur Radiol. 31(1):45-54, 2021
                                                                          3. Ando T et al: MR findings for differentiating decidualized endometriomas from seromucinous borderline tumors of the ovary. Abdom Radiol (NY). 45(6):1783-9, 2020
                                                                          4. Nagamine M et al: Ovarian seromucinous tumors: pathogenesis, morphologic spectrum, and clinical issues. Diagnostics (Basel). 10(2): 77, 2020
                                                                          5. Han JW et al: Newly categorized seromucinous tumor of the ovary: magnetic resonance imaging findings. J Comput Assist Tomogr. 43(1):119-27, 2019
                                                                          6. Kurata Y et al: Differentiation of seromucinous borderline tumor from serous borderline tumor on MR imaging. Magn Reson Med Sci. 17(3):211-7, 2018
                                                                          7. Hauptmann S et al: Ovarian borderline tumors in the 2014 WHO classification: evolving concepts and diagnostic criteria. Virchows Arch. 470(2):125-42, 2017
                                                                          8. Kurata Y et al: Diagnostic performance of MR imaging findings and quantitative values in the differentiation of seromucinous borderline tumour from endometriosis-related malignant ovarian tumour. Eur Radiol. 27(4):1695-703, 2017