title: Crossed testicular ectopia.
abstract: Crossed testicular ectopia (CTE) is a rare anomaly, characterized by migration of one testis towards the opposite inguinal canal. Presented here is a case of crossed ectopia of the right testis, treated by extraperitoneal transposition of the gonad and right orchiopexy. Embriology and surgical findings suggest that CTE is a common consequence of many unclear ethiologic factors, specially mechanical ones, and can be associated with Muller duct persistence. Review of literature suggests a classification of CTE into 3 types: I--associated with inguinal hernia alone; II--associated with persistent mullerian remnants; III--associated with other anomalies without mullerian remnants. Treatment includes transeptal orchiopexy or extraperitoneal transposition of the testis, research for mullerian remnants and other anomalies, and long term postoperative follow-up, due to the risk of becoming malignant.
authors.affiliation: Department of Surgery, Escola Paulista de Medicina, São Paulo, Brazil.
authors.forename: E
authors.initials: E
authors.lastname: Esteves
authors.forename: J
authors.initials: J
authors.lastname: Pinus
authors.forename: R F
authors.initials: RF
authors.lastname: Maranhão
authors.forename: S de C
authors.initials: Sde C
authors.lastname: Abib
authors.forename: J
authors.initials: J
authors.lastname: Pinus
mesh_terms: D002675:Child, Preschool; D003456:Cryptorchidism / Q000150:complications / Q000601:surgery; D006552:Hernia, Inguinal / Q000150:complications / Q000601:surgery; D006801:Humans; D008297:Male; D013737:Testis / Q000002:abnormalities* / Q000601:surgery