Monorchism

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Not to be confused with Monarchism.
Monorchism
SpecialtyMedical genetics Edit this on Wikidata

Monorchism (also monorchidism) is the state of having only one testicle within the scrotum.

Terminology

An individual having monorchism can be referred to as monorchid.

Causes

This can be due to:

  • 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. Such a testis has an increased risk of malignancy.
  • One testicle may disappear during development (the so-called vanishing testis) due to some intrauterine insult. This is thought to be most likely vascular, such as testicular torsion.
  • One testicle may have been surgically removed through orchiectomy.
  • One testicle may be injured.

Notable cases

Due to testicular cancer

Due to injury

Due to cryptorchidism

  • Mao Zedong, founder of the People's Republic of China.[18]
  • Dara Ó Briain, Irish comedian related that he has a single testicle in a standup routine.

Unknown

Monorchism in nonhuman animals

Although extremely rare, monorchism has been observed to be characteristic of some animal species, notably in beetles.[20]

See also

References

  1. ^ Allen, Arthur (29 July 1999). "Triumph of the cure". Salon.
  2. ^ "Milestones: Jan. 23, 1984". Time. 23 January 1984.
  3. ^ http://www.usrf.org/tomgreen.shtml Urological Sciences Research Foundation page on Tom Green
  4. ^ "Testicular Cancer And Mark Latham". George Negus Tonight. Archived from the original on 30 July 2004.
  5. ^ Baggaley, Michael (July 22, 2009). "Port Vale: Horsfield hoping his luck can rub off on Valiants". The Sentinel. Retrieved 2009-07-22.
  6. ^ "Nuggets: Nene's testicular tumor malignant, but cancer isolated". The Denver Post. The Associated Press. 22 January 2008.
  7. ^ Volin, Ben (17 December 2010). "After surgery for cancer, wide receiver Kevin Curtis gets a chance with Miami Dolphins". The Palm Beach Post.
  8. ^ Farage, Nigel (13 March 2015). "Nigel Farage: Cancer, a lemon-sized testicle and how the NHS failed me". The Telegraph.
  9. ^ Parsons, Tony (14 February 2009). "David Beckham is great, but Bobby Moore was one of a kind". Mirror.
  10. ^ White, Jimmy; Kingsland, Rosemary (1998). Behind the White Ball: My Autobiography. London: Hutchinson. ISBN 978-0-09-180126-7.[page needed]
  11. ^ Chronicle of John Hardyng, ed. Ellis, H., p.381. London, 1812. [1]
  12. ^ "Hard Man Bayliss". Visordown. Retrieved 7 December 2015.
  13. ^ "MMA cost Brian Foster a nut". Rebellion Media. April 13, 2011. Retrieved 2012-02-19.
  14. ^ "Starks has twisted testicle removed". ESPN. Associated Press. 30 May 2001.
  15. ^ "Wire's Wood has testicle removed". BBC Sport. 7 October 2012.
  16. ^ Merry, Stephanie (5 October 2017). "The new Thurgood Marshall biopic is trying not to be a 'good for you' movie". Washington Post.
  17. ^ Raab, Chris (February 18, 2019). "Bathroom Break Podcast #27 - Dave England: Entertainer". YouTube. Retrieved April 14, 2022.
  18. ^ Li Zhisui (2010). Private Life Of Chairman Mao: The Memoirs of Mao's Personal Physician. Random House. p. 100. ISBN 978-1-4070-5922-8.
  19. ^ "BBC News - Spain's Franco 'had one testicle'". 18 May 2009. Retrieved 7 December 2015.
  20. ^ Will, Kipling W.; Liebherr, James K.; Maddison, David R.; Galián, José (April 2005). "Absence asymmetry: The evolution of monorchid beetles (Insecta: Coleoptera: Carabidae): Carabid Beetle Testes" (PDF). Journal of Morphology. 264 (1): 75–93. doi:10.1002/jmor.10319. PMID 15732050. S2CID 38195864.
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