Korean J Urol.  2008 May;49(5):472-474. 10.4111/kju.2008.49.5.472.

Embryonal Carcinoma of a Pexed Testis

• Chang HS
• Kim KS

• KMID: 1204533
• DOI: http://doi.org/10.4111/kju.2008.49.5.472

Abstract

A 24-year-old patient who had a history of right-side orchidopexy 16 years ago presented with right testicular pain. A hypoechoic mass was seen on the ultrasonography. Inguinal orchiectomy of the right testis was performed. On microscopic examination, the specimen was identical as an embryonal carcinoma.

Keyword

Testicular neoplasms; Testis; undescended

Figure

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  Fig. 1 Ultrasonography of the right testis showed a hypoechoic mass with focal areas of increased echogenicity.

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  Fig. 2 The gross findings show an ill-demarcated, pale tan to white, solid mass with foci of necrosis.

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  Fig. 3 Immunohistochemistry reveals diffuse cytoplasmic staining for cytokeratin (A) and membranous staining for Ki-1 (CD30) (B).

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  Fig. 4 (A) The tumor cells have pleomorphic and vesicular nuclei with large nucleoli (H&E, ×400). (B) The tunica albuginea is involved by scattered clusters of tumor cells (H&E, ×40). (C) Vascular invasion was present in the epididymis.

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