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An indirect inguinal hernia results from the failure of embryonic closure of the deep inguinal ring. In the male it can occur after the testicle has passed through the deep inguinal ring. It is the most common cause of groin hernia. A double indirect inguinal hernia has two sacs. In the male fetus, the peritoneum gives a coat to the testicle as ...
The superficial inguinal ring (subcutaneous inguinal ring or external inguinal ring) is an anatomical structure in the anterior wall of the mammalian abdomen. It is a triangular opening that forms the exit of the inguinal canal, which houses the ilioinguinal nerve , the genital branch of the genitofemoral nerve , and the spermatic cord (in men ...
A failure in this process causes an indirect inguinal hernia. Germ cells migrate from near the allantois and colonize the primordial gonads. In the female, the germ cells colonise the cortex and become oogonia. In the male, the germ cells colonise the seminiferous cords of the medulla, becoming spermatogonia.
By far the most common hernias (up to 75% of all abdominal hernias) are inguinal hernias, which are further divided into the more common indirect inguinal hernia (2/3, depicted here), in which the inguinal canal is entered via a congenital weakness at its entrance (the internal inguinal ring), and the direct inguinal hernia type (1/3), where ...
The more patent the vaginal process, the more likely the patient is to develop a hernia. Congenital malformation of the vaginal process is also the leading cause of testicular torsion , since lack of attachment to the inner lining of the scrotum leaves the testicles free to twist.
The vaginal process between the abdominal inguinal ring and the superior part of the testis is then obliterated, usually leaving a string-like or cord-like remnant adjacent to the spermatic cord. [2] If the vaginal process fails to obliterate, the communication between the peritoneal cavity and scrotum persists after birth, predisposing the ...
In rare cases, it may give rise to a cyst or a hydrocele in women and has potential to develop into an indirect inguinal hernia. The pouch accompanies the gubernaculum during development of the urinary and reproductive organs, more specifically during the descent of the ovaries, and normally obliterates. [citation needed]
An inguinal hernia is a hernia of the groin and can be either a direct hernia, or an indirect hernia according to its particular location. Sometimes a direct hernia may be present with an indirect hernia on the same side when it is known as a saddlebag hernia .
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