College of American Pathologists

2010 — October Case of the Month

Posted October 13, 2010


CAP Foundation October 2010 Online Case of the Month

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A 34-year-old man with a complaint of testicular enlargement was seen by an urologist. An ultrasound revealed a testicular mass. An orchiectomy was performed. The removed testis measured up to 5.5 cm and was partially replaced by a fairly homogenous 5.0 cm tan-pink tumor with a central area of necrosis. The tumor grossly appeared to be confined to the testis.

The master list with the correct answer

  • Chronic orchitis
  • Embryonal carcinoma
  • Malignant lymphoma
  • Mixed germ cell tumor
  • Seminoma
  • Spermatocytic seminoma
  • Yolk sac tumor

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  • Appropriate diagnosis
  • Critique
  • References

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