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  2. Cryptorchidism - Wikipedia

    en.wikipedia.org/wiki/Cryptorchidism

    The risk of malignancy in the undescended testis is 4 to 10 ten times higher than that in the general population and is about one in 80 with a unilateral undescended testis and one in 40 to one in 50 for bilateral undescended testes. The peak age for this tumor is 15–45 years old.

  3. Orchiopexy - Wikipedia

    en.wikipedia.org/wiki/Orchiopexy

    Undescended testicles affect 1% of males and are 10% bilateral. The cause is unknown, with a small percentage associated with developmental abnormalities or chromosomal aberrations. [citation needed] Early orchiopexy reduces the risks for cancer and sterility in males with cryptorchidism, or undescended testes. [citation needed]

  4. Scrotal ultrasound - Wikipedia

    en.wikipedia.org/wiki/Scrotal_ultrasound

    Normally the testes begin its descent through the inguinal canal to the scrotum at 36 weeks’ of gestation and completed at birth. Failure in the course of testes descent will result in undescended testes (Cryptorchidism). Undescended testis is found in 4% of full-term infants but only 0.8% of males at the age of 1 year have true cryptorchidism.

  5. Orchiectomy - Wikipedia

    en.wikipedia.org/wiki/Orchiectomy

    An inguinal orchiectomy can be either unilateral (one testicle) or bilateral (both testicles). The surgeon makes an incision in the groin area (in contrast to an incision in the scrotum, as is done in both simple and subcapsular orchiectomies). The entire spermatic cord is removed, as well as the testicle(s).

  6. Persistent Müllerian duct syndrome - Wikipedia

    en.wikipedia.org/wiki/Persistent_Müllerian_duct...

    Typical features include undescended testes (cryptorchidism) and the presence of a small, underdeveloped uterus in an XY infant or adult. This condition is usually caused by deficiency of fetal anti-Müllerian hormone (AMH) effect due to mutations of the gene for AMH or the anti-Müllerian hormone receptor , but may also be as a result of ...

  7. Male genital examination - Wikipedia

    en.wikipedia.org/wiki/Male_genital_examination

    Diagnosing undescended testicles involves a physical examination. If the testis cannot be felt, it is categorized as "non-palpable." Generally, there are three underlying reasons for nonpalpable testicles: The testis is in the inguinal canal but cannot be palpated for specific reasons. The testis is situated inside the abdomen.

  8. Monorchism - Wikipedia

    en.wikipedia.org/wiki/Monorchism

    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.

  9. 5α-Reductase 2 deficiency - Wikipedia

    en.wikipedia.org/wiki/5α-Reductase_2_deficiency

    The internal reproductive structures (vasa deferentia, seminal vesicles, epididymides and ejaculatory ducts) are normal but testes are usually undescended and prostate hypoplasia is common. Males with the same mutations in SRD5A2 can have different phenotypes suggesting additional factors that are involved in clinical presentation.