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Male reproductive anatomy
Male reproductive anatomy
Male reproductive system
Male reproductive system


Anorchia

Alternative Names:
Vanishing testes - anorchia; Empty scrotum - anorchia; Scrotum - empty (anorchia)

Symptoms:
  • Normal external genitalia
  • Failure to enter puberty at expected time and lack of secondary sex characteristics (growth of penis, body and pubic hair growth, deepening of the voice, and increase in muscle mass)


Signs and tests:

Signs include:

  • Empty scrotum
  • Lack of secondary sex characteristics

Tests include:

  • Testosterone levels (low)
  • FSH and LH levels (elevated)
  • X,Y karyotype
  • Ultrasound or MRI showing absent gonadal tissue
  • Bone density (low)
  • Anti-Mullerian hormone levels (low)
  • Surgical exploration to search for evidence of male gonadal tissue
Failure of testosterone to rise after hCG distinguishes anorchia from cryptorchidism.


Review Date: 8/12/2004
Reviewed By: Aniket R. Sidhaye, M.D., Division of Endocrinology and Metabolism, Johns Hopkins University School of Medicine, Baltimore, MD. Review provided by VeriMed Healthcare Network.

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