Objective      To discuss the etiology

diagnosis and treatment of transverse testicular ectopia (TTE).       Methods      Here reports a case of transverse testicular ectopia

which was found with 2 vas deferens and 2 spermatic cord

2 testes on the right side of the inguinal canal and the scrotum during the operation. The spermatic cords were fully free

and the ectopic testis was fixed by traverse the scrotal mediastinum. The associated anomaly such as the right inguinal hernia was repaired and the hydrocele of spermatic cord was treated by resection of the redundant tunica vaginalis at the same time.  The clinical data of this case was analyzed according to its manifestation

diagnosis and treatment

combined with literature review.       Results      This case was finally diagnosed as left transverese testicular ectopia

left funicular hydocele

right recurrent inguinal hernia

right epididymal cyst

and asthenozoospermia. Bilateral testes were in proper positions with normal vascular supply in 3 months after the operation. During follow-up

the patient had biliteral testes in normal positions

in well shape and blood supply.        Conclusion      TTE is a rare congenital abnormality of testicular maldescent. It is usually accompanied by other anomalies such as inguinal hernia

hydrocele and persistent or rudimentary Mullerian remnants. Early operation is the best option for TTE treatment. Long-term postoperative follow-up is highly recommended to prevent the risk of malignancy in the embryonic remnants.