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.
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
^ abFix, James D.; Dudek, Ronald W. (1998). Embryology. Baltimore: Williams & Wilkins. ISBN 0-683-30272-8. Vestigial remnants of the mesonephric tubules called the epoöphoron and paroöphoron may be found in the adult female.
vertebrate. The paradidymis represents a remnant of an unused, atrophied part of the Wolffian body.[citation needed] The paradidymis is homologous to...
(residual remnant of that part of the mesonephric duct that forms the paradidymis in the male) lies more medially in the mesosalpinx. It has a unique histological...
posterior tubules are represented by the ductuli aberrantes, and by the paradidymis, which is sometimes found in front of the spermatic cord above the head...
is a remnant of the mesonephric tubules and is homologous to the male paradidymis. Epoophoron One or more of the preceding sentences incorporates text...
epididymis. In addition, some mesonephric tubules can persist as the paradidymis, a small body caudal to the efferent ductules. The epoophoron is a homologous...
vestigial structures such as the appendix testis, appendix epididymis, and paradidymis. The mesonephros persists and forms the anterior portion of the permanent...
remains of the Wolffian body, constituting the organ of Giraldès, or the paradidymis of Waldeyer. Development of the reproductive system 1918 Gray's Anatomy...
appendix testis, the appendix epididymis, the vas aberrans, and the paradidymis. They are all remnants of embryonic ducts. Among them, the appendix testis...
connected to the seminiferous tubules of the testes. They also form the paradidymis.: 185 The sperm differentiate inside the seminiferous tubules, then...
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