Testicular epidermoid cysts: The "bow tie" pattern of laminated tumors

Lynnette K. Johnson, Joseph C. Anderson, Kim Michael, Jody Berg, Mohammed F. Quraishi

Research output: Contribution to journalArticlepeer-review


Testicular epidermoid cysts are benign tumors that represent only 1% of all testicular tumors. This tumor presents as a palpable mass within the testicle. High-resolution sonography can help provide a presurgical diagnosis due to the tumor's unique sonographic appearance of a "bow tie" echogenicity. This bow tie pattern is formed by the deposition of keratin in layers by the lining of the cyst. A preoperative sonographic diagnosis of a testicular epidermoid cyst can lead to testicle-sparing surgery in healthy, young males due to the benign nature of this tumor.

Original languageEnglish (US)
Pages (from-to)162-167
Number of pages6
JournalJournal of Diagnostic Medical Sonography
Issue number3
StatePublished - May 2004


  • Bow tie
  • Epidermoid cyst
  • Histology
  • Sonography
  • Testicular sparing surgery
  • Testis

ASJC Scopus subject areas

  • Radiological and Ultrasound Technology
  • Radiology Nuclear Medicine and imaging


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