appendix testis

Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.
Related to appendix testis: Appendix epididymis

appendix of testis

a vesicular nonpedunculated structure attached to the cephalic pole of the testis; a vestige of the cephalic end of the paramesonephric (müllerian) duct.

appendix testis

A small bladder-like structure at the upper end of the testis . It ia a vestigial remnant of the cephalic portion of the müllerian duct
See also: appendix


pl. appendices [L.]
1. a slender outgrowth or appendage.
2. the vermiform appendix, a slender diverticulum present in only a few mammals such as the rabbit, humans and the great apes. A structure of doubtful function, rich in lymphoid tissue.

appendix epididymis
a small, piriform body attached to the head of the epididymis that is a remnant of the blind cranial segment of the mesonephric duct.
appendix testis
a small cyst adjacent to the head of the epididymis that is a remnant of the paramesonephric (müllerian) duct. Called also Morgagni's hydatid.
References in periodicals archive ?
Torsion of the appendix testis is a rare cause of scrotal swelling in neonates.
Expression of anti-Mullerian hormone receptor on the appendix testis in connection with urological disorders," Asian Journal of Andrology, vol.
Differentiation of epididymitis and appendix testis torsion by clinical and ultrasound signs in children," Urology, vol.
The appendix testis is attached to the upper pole of the testis in the groove between the testis and the epididymis, while the appendix epididymis is attached to the head of the epididymis.
Approximately 91% to 95% of cases involve the appendix testis in boys 7 to 14 years of age.
Scrotoliths (scrotal pearls)--calcified bodies within the scrotum with no clinical importance--may represent loose bodies caused by torsion of the appendix testis or epididymis (4) (Figure 15).