Bilobed testis
Dr Duncan Lyons and Dr M Venkatesh et al.
Bilobed testis, also known as incomplete unilateral polyorchidism, is a very rare variant in children.
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Pathology
The exact etiology 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.
Associations
Radiographic features
Ultrasound
- lobulated testis with normal echotexture
- hemi-testicular structure of similar echogenecity of testis
Treatment
The treatment depends on any underlying abnormality and the evidence is conflicting. Some papers suggest conservative management and imaging follow up (particularly if cancer suspected)4,5. While others recommend surgical intervention of the affected testis and orchiopexy of the contralateral testis due to the significant risk of testicular torsion 6.
Related Radiopaedia articles
Anatomy: Abdominopelvic
- skeleton of the abdomen and pelvis
- muscles of the abdomen and pelvis
- spaces of the abdomen and pelvis
- anterior abdominal wall
- posterior abdominal wall
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abdominal cavity
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peritoneum
- peritoneal ligaments
- mesentery
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peritoneal spaces
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supramesocolic space
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right supramesocolic space
- right subphrenic space
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right subhepatic space
- anterior right subhepatic space
- posterior right subhepatic space (Morison pouch)
-
lesser sac
- epiploic foramen (of Winslow)
- left supramesocolic space (left perihepatic space)
-
right supramesocolic space
- inframesocolic space
-
supramesocolic space
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- Hesselbach triangle
- umbilical folds
- retroperitoneum
-
peritoneum
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- perineum
- abdominal and pelvic viscera
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- hepatobiliary system
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endocrine system
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adrenal gland
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adrenal gland
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urinary system
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kidney
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variants
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kidney
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female reproductive system
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- embryology
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abdominal aorta
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- celiac artery
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- middle suprarenal artery
- renal artery (variant anatomy)
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- inferior mesenteric artery
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common iliac artery
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internal iliac artery (mnemonic)
- anterior division
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abdominal aorta
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- inferior gluteal nerve
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- perforating cutaneous nerve
- posterior femoral cutaneous nerve
- parasympathetic pelvic splanchnic nerves
- pudendal nerve
- nerve to quadratus femoris and inferior gemellus muscles
- nerve to internal obturator and superior gemellus muscles
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