Appendix of epididymidis

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Appendix of the epididymis
The right testis, exposed by laying open the tunica vaginalis (appendix of epididymis labeled at center right)
Latin Appendix epididymidis
Gray's p.1242
Precursor Wolffian duct

The appendix of the epididymis (or pedunculated hydatid) is a small stalked appendage (sometimes duplicated) on the head of the epididymis. It is usually regarded as a detached efferent duct.

This structure is derived from the Wolffian duct (Mesonephric Duct) as opposed to the appendix testis which is derived from the mullerian duct (Paramesonephric Duct) remnant.

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This article incorporates text from a public domain edition of Gray's Anatomy.

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