Effect of testicular torsion on the contralateral testis.

It has been previously shown that unilateral testicular torsion can cause disruptive anatomic changes in the contralateral testis in rats. In this experimental study plasma and urine prostaglandin E2 levels were studied correlatively with testicular histopathology in acute testicular torsion cases. As a result of this study, necrobiotic morphologic alterations causing testis necrosis and significant increase in plasma prostaglandin E2 levels were observed. Contralateral testicular histology was analyzed in all dogs. None of them showed abnormal tubular architecture.