Anorchia

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Male reproductive anatomy

Male reproductive system

Vanishing testes - anorchia; Empty scrotum - anorchia; Scrotum - empty (anorchia)

• Normal outside genitalia before puberty
• 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 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

Review Date: 08/11/2006
Reviewed By: Robert Hurd, MD, Department of Biology, College of Arts and Sciences, Xavier University, Cincinnati, OH. Review provided by VeriMed Healthcare Network.