Appendix of testis

Appendix of testis is a vestigial remnant found on the upper pole of the testis. It is also known as hydatid of Morgagni and is not to be confused with the appendix testis, which is a different structure altogether.

Anatomy

The appendix of testis is a small, pedunculated appendage which can be found on the upper pole of the testis. It is a remnant of the Müllerian duct, which in females develops into the uterus, fallopian tubes, and part of the vagina. In males, the Müllerian duct degenerates due to the influence of Müllerian inhibiting factor (MIF), but a small part of it may remain as the appendix of testis.

Clinical significance

The appendix of testis is of little clinical significance as it does not serve any known function in the male reproductive system. However, it can become inflamed or twisted, leading to a condition known as appendix testis torsion. This condition can cause severe pain and may require surgical intervention.

See also

• Testis
• Müllerian duct
• Appendix testis torsion

References

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