Abstract

Isolated cryptorchidism (undescended testis) is one of the most common congenital anomalies found at birth and affects upward of 3% of full-term male newborns[1] and approximately 0.8% of infants at one year old.[2] Men with a history of an undescended testis are at risk for infertility and testicular tumors. There is controversy as to the diagnosis when a clinical examination fails to identify a testis.[3] In this prospective study ultrasound evaluation was compared to clinical examination and operative finding in 33 children in whom a testis was not present in the scrotum. The aims of this study were to detect the sensitivity and specificity of ultrasound in the diagnosis of undescended testis, and evaluate the correlation between the preoperative ultrasonographic data and operative findings. Forty-one boys (age: 6months -14years) with undescended testes were examined between June 2007and December 2010. A testis was clinically palpable(not in the scrotum) in 33 of these children and not palpated in 8. All the boys had undergone a sonogram performed for detection and localizing the undescended testes. Only 33 boys were sent for inguinal exploration, or other surgical procedures for localizing the undescended testes. We calculated specificity, sensitivity, positive predictive value (PPV), negative predictive value (NPV), and the accuracy of ultrasonographic diagnosis in boys with undescended testes. Thirty-three boys with undescended testes were examined clinically and ultrasonographically followed by surgical exploration and included in this study. Ultrasonography had a sensitivity of 80%, a specificity of 0%, PPV of 92.4%, NPV of 0%, and accuracy of 70.2% in the diagnosis of the undescended testis. Conclusions: The sensitivity and specificity including NPV of uetrasound had the unsatisfactory outcomes.

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The article was added to IASJ on 2014-05-16

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