Transverse Testicular Ectopia and Müllerian Duct Syndrome in Pediatric Patients: A Multicenter Study

Transverse Testicular Ectopia (TTE) is a rare anomaly where one testicle crosses the scrotal septum or descends into the opposite inguinal canal, sometimes associated with Persistent Müllerian Duct Syndrome (PMDS). This multicenter study reviewed six cases of TTE, all diagnosed clinically and via ultrasound. Each case underwent laparoscopic surgery, with varied approaches including a two-stage Fowler-Stephens procedure and open orchidopexy for cases with both testicles in one inguinal ring. Notably, three of the six patients had PMDS, and no resection of Müllerian remnants was performed due to their close proximity to vital structures. One year post-surgery, ultrasounds confirmed normal testicular echogenicity and positioning within the scrotum. This study highlights the importance of individualized surgical strategies for managing TTE and PMDS anomalies.