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Epidermoid Cyst
Amit B. Desai, MD; Shweta Bhatt, MD
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KEY FACTS

  • Terminology

    • Imaging

      • Top Differential Diagnoses

        • Clinical Issues

          TERMINOLOGY

          • Synonyms

            • Monodermal dermoid, keratin/cyst of testis
          • Definitions

            • Rare, benign, keratin-containing lesion of controversial origin

          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

                                • Consider

                                  • Image Interpretation Pearls

                                    Selected References

                                    1. Sağlam HS et al: A unique scrotal extratesticular epidermod cyst attached to the seminal vesicles. Can Urol Assoc J. 7(3-4):E244-7, 2013
                                    2. Patel K et al: Features of testicular epidermoid cysts on contrast-enhanced sonography and real-time tissue elastography. J Ultrasound Med. 31(1):115-22, 2012
                                    3. Yuan WH et al: Differences in sonographic features of ruptured and unruptured epidermal cysts. J Ultrasound Med. 31(2):265-72, 2012
                                    4. Agarwal A et al: Intrascrotal extratesticular epidermoid cyst. Br J Radiol. 84(1002):e121-2, 2011
                                    5. Arellano CM et al: Testicular epidermoid cysts in children: sonographic characteristics with pathological correlation. Pediatr Radiol. 41(6):683-9; quiz 796-7, 2011
                                    6. Bhatt S et al: Imaging of non-neoplastic intratesticular masses. Diagn Interv Radiol. 2011 Mar;17(1):52-63. Epub 2010 Jun 30. Review. Erratum in: Diagn Interv Radiol. 17(4):388, 2011
                                    7. Loberant N et al: Bilateral testicular epidermoid cysts. J Clin Imaging Sci. 1:4, 2011
                                    8. Park SB et al: Imaging features of benign solid testicular and paratesticular lesions. Eur Radiol. 21(10):2226-34, 2011
                                    9. Manning MA et al: Testicular epidermoid cysts: sonographic features with clinicopathologic correlation. J Ultrasound Med. 29(5):831-7, 2010
                                    10. Mak CW et al: Epidermoid cyst of the testis. Australas Radiol. 51 Spec No, 2007
                                    11. Maizlin ZV et al: Epidermoid cyst and teratoma of the testis: sonographic and histologic similarities. J Ultrasound Med. 24(10):1403-9; quiz 1410-1, 2005
                                    12. Loya AG et al: Epidermoid cyst of the testis: radiologic-pathologic correlation. Radiographics. 24 Suppl 1:S243-6, 2004
                                    13. Langer JE et al: Epidermoid cysts of the testicle: sonographic and MR imaging features. AJR Am J Roentgenol. 173(5):1295-9, 1999
                                    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

                                            • Synonyms

                                              • Monodermal dermoid, keratin/cyst of testis
                                            • Definitions

                                              • Rare, benign, keratin-containing lesion of controversial origin

                                            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

                                                                  • Consider

                                                                    • Image Interpretation Pearls

                                                                      Selected References

                                                                      1. Sağlam HS et al: A unique scrotal extratesticular epidermod cyst attached to the seminal vesicles. Can Urol Assoc J. 7(3-4):E244-7, 2013
                                                                      2. Patel K et al: Features of testicular epidermoid cysts on contrast-enhanced sonography and real-time tissue elastography. J Ultrasound Med. 31(1):115-22, 2012
                                                                      3. Yuan WH et al: Differences in sonographic features of ruptured and unruptured epidermal cysts. J Ultrasound Med. 31(2):265-72, 2012
                                                                      4. Agarwal A et al: Intrascrotal extratesticular epidermoid cyst. Br J Radiol. 84(1002):e121-2, 2011
                                                                      5. Arellano CM et al: Testicular epidermoid cysts in children: sonographic characteristics with pathological correlation. Pediatr Radiol. 41(6):683-9; quiz 796-7, 2011
                                                                      6. Bhatt S et al: Imaging of non-neoplastic intratesticular masses. Diagn Interv Radiol. 2011 Mar;17(1):52-63. Epub 2010 Jun 30. Review. Erratum in: Diagn Interv Radiol. 17(4):388, 2011
                                                                      7. Loberant N et al: Bilateral testicular epidermoid cysts. J Clin Imaging Sci. 1:4, 2011
                                                                      8. Park SB et al: Imaging features of benign solid testicular and paratesticular lesions. Eur Radiol. 21(10):2226-34, 2011
                                                                      9. Manning MA et al: Testicular epidermoid cysts: sonographic features with clinicopathologic correlation. J Ultrasound Med. 29(5):831-7, 2010
                                                                      10. Mak CW et al: Epidermoid cyst of the testis. Australas Radiol. 51 Spec No, 2007
                                                                      11. Maizlin ZV et al: Epidermoid cyst and teratoma of the testis: sonographic and histologic similarities. J Ultrasound Med. 24(10):1403-9; quiz 1410-1, 2005
                                                                      12. Loya AG et al: Epidermoid cyst of the testis: radiologic-pathologic correlation. Radiographics. 24 Suppl 1:S243-6, 2004
                                                                      13. Langer JE et al: Epidermoid cysts of the testicle: sonographic and MR imaging features. AJR Am J Roentgenol. 173(5):1295-9, 1999