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Scrotal Fibrous Pseudotumor
Bryan R. Foster, MD; Paula J. Woodward, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Pathology

          • Diagnostic Checklist

            TERMINOLOGY

            • Synonyms

              • Exact etiology not completely understood, leading to host of different names
                • Chronic periorchitis, fibrous proliferation of tunica, fibroma, nonspecific paratesticular fibrosis, granulomatous periorchitis, nodular fibropseudotumor, inflammatory pseudotumor, reactive periorchitis
                • "Scrotal mouse" for mobile masses within tunica vaginalis
            • Definitions

              • Rare, benign fibroinflammatory reaction resulting in 1 or more extratesticular nodules

            IMAGING

            • General Features

              • Ultrasonographic Findings

                • MR Findings

                  • Imaging Recommendations

                    DIFFERENTIAL DIAGNOSIS

                      PATHOLOGY

                      • General Features

                        • Microscopic Features

                          CLINICAL ISSUES

                          • Presentation

                            • Demographics

                              • Natural History & Prognosis

                                • Treatment

                                  DIAGNOSTIC CHECKLIST

                                  • Image Interpretation Pearls

                                    Selected References

                                    1. ChangChien YC et al: Paratesticular fibrous pseudotumor: a new entity of IgG4-related disease? Ann Clin Lab Sci. 48(3):381-5, 2018
                                    2. Kodama H et al: A case of fibrous pseudotumor in the scrotum: challenge for diagnosis and testicular preservation. Case Rep Urol. 2018:6904827, 2018
                                    3. Mittal PK et al: Spectrum of extratesticular and testicular pathologic conditions at scrotal MR Imaging. Radiographics. 38(3):806-30, 2018
                                    4. Bulakci M et al: Imaging appearances of paratesticular fibrous pseudotumor. Pol J Radiol. 81:10-4, 2016
                                    5. Ohana M et al: Fibrous pseudotumor of the tunica vaginalis of the scrotum: is there a typical ultrasound pattern? Ultrasound Int Open. 2(1):E34-6, 2016
                                    6. Wolfman DJ et al: Mesenchymal extratesticular tumors and tumorlike conditions: from the radiologic pathology archives. Radiographics. 35(7):1943-54, 2015
                                    7. Germaine P et al: Fibrous pseudotumor of the scrotum. J Ultrasound Med. 26(1):133-8, 2007
                                    8. Woodward PJ et al: From the archives of the AFIP: extratesticular scrotal masses: radiologic-pathologic correlation. Radiographics. 23(1):215-40, 2003
                                    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

                                              • Synonyms

                                                • Exact etiology not completely understood, leading to host of different names
                                                  • Chronic periorchitis, fibrous proliferation of tunica, fibroma, nonspecific paratesticular fibrosis, granulomatous periorchitis, nodular fibropseudotumor, inflammatory pseudotumor, reactive periorchitis
                                                  • "Scrotal mouse" for mobile masses within tunica vaginalis
                                              • Definitions

                                                • Rare, benign fibroinflammatory reaction resulting in 1 or more extratesticular nodules

                                              IMAGING

                                              • General Features

                                                • Ultrasonographic Findings

                                                  • MR Findings

                                                    • Imaging Recommendations

                                                      DIFFERENTIAL DIAGNOSIS

                                                        PATHOLOGY

                                                        • General Features

                                                          • Microscopic Features

                                                            CLINICAL ISSUES

                                                            • Presentation

                                                              • Demographics

                                                                • Natural History & Prognosis

                                                                  • Treatment

                                                                    DIAGNOSTIC CHECKLIST

                                                                    • Image Interpretation Pearls

                                                                      Selected References

                                                                      1. ChangChien YC et al: Paratesticular fibrous pseudotumor: a new entity of IgG4-related disease? Ann Clin Lab Sci. 48(3):381-5, 2018
                                                                      2. Kodama H et al: A case of fibrous pseudotumor in the scrotum: challenge for diagnosis and testicular preservation. Case Rep Urol. 2018:6904827, 2018
                                                                      3. Mittal PK et al: Spectrum of extratesticular and testicular pathologic conditions at scrotal MR Imaging. Radiographics. 38(3):806-30, 2018
                                                                      4. Bulakci M et al: Imaging appearances of paratesticular fibrous pseudotumor. Pol J Radiol. 81:10-4, 2016
                                                                      5. Ohana M et al: Fibrous pseudotumor of the tunica vaginalis of the scrotum: is there a typical ultrasound pattern? Ultrasound Int Open. 2(1):E34-6, 2016
                                                                      6. Wolfman DJ et al: Mesenchymal extratesticular tumors and tumorlike conditions: from the radiologic pathology archives. Radiographics. 35(7):1943-54, 2015
                                                                      7. Germaine P et al: Fibrous pseudotumor of the scrotum. J Ultrasound Med. 26(1):133-8, 2007
                                                                      8. Woodward PJ et al: From the archives of the AFIP: extratesticular scrotal masses: radiologic-pathologic correlation. Radiographics. 23(1):215-40, 2003