College of American Pathologists

2012 — May Case of the Month

Posted May 22, 2012


CAP Foundation May Online Case of the Month

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A 69-year-old man with an enlarging painless right testis underwent orchiectomy. The testis contained a 5.0 cm lobulated white-gray mass replacing most of the parenchyma and involving paratesticular structures. A workup revealed no evidence of involvement elsewhere.

The master list with the correct answer

  • Chronic orchitis
  • Embryonal carcinoma
  • Myeloid sarcoma
  • Primary testicular lymphoma, diffuse large
     B-cell type

  • Seminoma

Access Case Critique to view:

  • Appropriate diagnosis
  • Critique
  • References

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