Paradidymis

The term paradidymis (pl.: paradidymides; organ of Giraldés^[2]) is applied to a small collection of convoluted tubules, situated in front of the lower part of the spermatic cord, above the head of the epididymis.

Paradidymis
Details
Precursor	Mesonephric tubules[1]: 185
Identifiers
Latin	paradidymis
TA98	A09.3.03.001
TA2	3614
Anatomical terminology [edit on Wikidata]

These tubes are lined with columnar ciliated epithelium, and probably represent the remains of a part of the Wolffian body, like the epididymis, but are functionless and vestigial. The Wolffian body operates as a kidney (mesonephros) in fishes and amphibians, but the corresponding tissue is co-opted to form parts of the male reproductive system in other classes of vertebrate. The paradidymis represents a remnant of an unused, atrophied part of the Wolffian body.^{[citation needed]}

The paradidymis is homologous to the female paroophoron, as they both arise from mesonephric tubules.^[1]: 177