Bilobed testis

Dr Henry Knipe and Dr M Venkatesh et al.

Bilobed testis, also known as incomplete unilateral polyorchidism, is a very rare variant in children.


The exact aetiology is unknown but is thought be a form of incomplete polyorchidism. It has been proposed that bilobed testis results from incomplete division of the urogenital ridge 1-3.


Radiographic features

  • lobulated testis with normal echotexture
  • hemi-testicular structure of similar echogenecity of testis
Anatomy: Abdominopelvic
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Article information

rID: 25841
System: Urogenital
Section: Anatomy
Synonyms or Alternate Spellings:
  • Bilobed testicle
  • Bilobed testes
  • Incomplete unilateral polychordism

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