MD Djerba Tunisia
left testicle was identified in inguinal canal of 23-year-old man
testicule gauche ectopique a été identifié dans
le canal inguinal, chez un patient de 23 ans
of the normal testis (right) and undescended (left) show that the
undescended testis that is located in the inguinal canal is smaller
and has a more elongated appearance. The echo texture of an undescended
testicle is homogeneous and hypoechoic.
longitudinales du testicule normal en place (droit) et du testicule
ectopique (gauche) montrent que le testicule ectopique, qui est situé
dans le canal inguinal, est plus petit et a un aspect plus allongé.
L'echostructure de ce dernier est homogène et hypoéchogène.
left testis located in the inguinal canal
ectopique situé dans le canal inguinal
In the normal fetus, the testicles descend
into the scrotal sac at approximately 36 weeks' gestation. If
the testes fail to descend into the scrotum, cryptorchidism results.
An undescended testicle has a 40 times higher risk of cancer than
does a testicle within the scrotal sac
Sonographic Findings :
Approximately 80% of undescended testes are located within the
inguinal canal and are easily visualized with sonography. Intra-abdominal
testes occur in the retroperitoneum from the level of the kidneys
to the internal inguinal ring. Intraabdominal testicles may be
located as high as the renal pedicle
An undescended testicle is identified as a soft tissue mass in
the inguinal canal or peritoneal cavity. The undescended testicle
is typically smaller than a normally located testicle and may
be mobile on palpation. The echo texture
of an undescended testicle is homogeneous and hypoechoic.
For surgical correction of cryptorchidism in infants and young
children, the undescended testicles are placed in the scrotal
sac. Surgery within the second year of life
The risk of cancer is eliminated if the testis is surgically relocated
to the scrotum prior to age 5. Between ages 5 and 10, orchiopexy
has a diminishing effect on the rate of cancer. After age 10,
orchiectomy is usually performed.