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Dog testes usually descend by 10 days of age and it is considered to be cryptorchidism if they do not descend by the age of eight weeks. [23] Cryptorchidism can be either bilateral (causing sterility) or unilateral, and inguinal or abdominal (or both). Because it is an inherited trait, affected dogs should not be bred and should be castrated ...
One testicle not descending into the scrotum during normal embryonic or fetal development (3–4% of 'normal' live births), also known as undescended testis or cryptorchidism. In this case the testis is within the abdominal cavity, somewhere along the normal route of descent – most commonly, within the inguinal canal .
Cryptorchidism, or "undescended testicles", is when the testicle does not descend into the scrotum of an infant boy. [30] Testicular enlargement is an unspecific sign of various testicular diseases, and can be defined as a testicular size of more than 5 cm × 3 cm (short axis). [42]
The descent of the testicles consists of the opening of a connection from the testis to its final location at the anterior abdominal wall, followed by the development of the gubernaculum, which subsequently pulls and translocates the testicle down into the developing scrotum. Ultimately, the passageway closes behind the testis.
XX male syndrome, also known as de la Chapelle syndrome, is a rare intersex condition in which an individual with a 46,XX karyotype develops a male phenotype. [2] Synonyms for XX male syndrome include 46,XX testicular difference of sex development (or 46,XX DSD) [3] [4] [5] [6]
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In cryptorchidism a diagnosis is made from a physical examination which is performed when the baby is lacking one or both testes in the dependant portion of the scrotal sac. 70% of cryptorchid testes can be felt and are unable to be pulled into the scrotum or retreat quickly after being pulled into a higher position. In 30% of cases the testes ...
PMDS Type I is also referred to as hernia uteri inguinalis, which exhibits one descended testis that has also pulled the fallopian tube, and sometimes uterus, through the inguinal canal. [8] The descended testes, fallopian tube and uterus all fall in the same inguinal canal, causing an inguinal hernia. [ 8 ]