College of American Pathologists

2013 — October Case of the Month

Posted October 24, 2013

CLINICAL SUMMARY: Testis/paratesticular  

CAP Foundation Online Case of the Month

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A 65-year-old man presented with a large right paratesticular mass. The mass, right testis and spermatic cord were resected. The mass was partially encapsulated with attached adipose tissue, weighed 416 g and measured 11.5 x 9.0 x 6.3 cm. The cut surfaces were tan-yellow and nodular with focal areas of fibrosis.

The master list with the correct answer

  • Aggressive angiomyxoma
  • Angiomyofibroblastoma-like tumor
     of male genital tract

  • Malignant fibrous histiocytoma
     (pleomorphic sarcoma)

  • Spindle cell lipoma
  • Well-differentiated liposarcoma

Access Case Critique to view:

  • Appropriate diagnosis
  • Critique
  • References

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