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vesicular appendage of epoophoron

Sunday 6 December 2020

Morgani hydatid in females


Definition : Vesicular appendages of the epoöphoron (or Morgani hydatid in females) are small pedunculated vesicles of the fimbriae of the uterine tube, or connected to the broad ligament.

Vesicular appendages of the epoöphoron were described by Giovanni Battista Morgagni and are remnants of the cranial part of the mesonephric duct. Typically they are asymptomatic.

In the male remnants of the paramesonephric duct may be present as well and are also known as appendix of testis or hydatid of Morgagni.

They are rarely absent, and are attached either to the free margin of the mesosalpinx or to one of the fimbriae, and are pedunculated vesicles, filled with fluid, about the size of a small pea. The pedicles frequently attain a considerable length.[1]

The Hydatid of Morgagni can refer to one of two closely related structures in male and female:
- In male: testicular hydatid of Morgagni (or appendix testis)
- In female: vesicular appendage of epoophoron

The epoophoron or epoöphoron (also called organ of Rosenmüller[2][3] or the parovarium) is a remnant of the mesonephric tubules that can be found next to the ovary and fallopian tube.

In female, the vesicular appendage of the epoophoron (hydatid of Morgagni in female) form one or more small pedunculated vesicles in connection with the fimbriae of the uterine tube, or with the broad ligament close to them.

In male, the appendix testis (or testicular hydatid of Morgagni) is a vestigial remnant of the Müllerian duct, present on the upper pole of the testis and attached to the tunica vaginalis. It is present about 90% of the time. It has no physiological function.


- torsion of the hydatid of Morgagni

See also

- Mullerian ducts