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Appendix Testis & Epididymis

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Testis_NormalHistology_AppendixTestis_Epididymis.jpg

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This orchiectomy specimen shows two vestigial structures frequently seen attached to the testis. Appendix testis (T) is a small round or oval, sessile or pedunculated structure attached to the tunica albuginea on the antero-superior portion of the testis. It is a remnant of the cranial portion of the müllerian duct. Appendix epididymis (E) is a remnant of the cranial portion of the mesonephric duct. It is located just above the appendix testis near the head of epididymis.

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