Transverse testicular ectopia: a case report on preoperative misdiagnosis in two siblings

Ultrasound is the first diagnostic modality for suspected testicular abnormalities, but TTE can have a preoperative misdiagnosis rate up to 35%. Laparoscopy is recommended for the diagnosis of TTE. Children with a preoperative diagnosis of cryptorchidism should be carefully evaluated to rule out TTE, especially in those with an inguinal mass on the opposite side and those with siblings with TTE. Preoperative planning in children diagnosed with cryptorchidism should also consider the possibility of TTE. Once TTE is confirmed, transseptal orchidopexy (Ombredanne operation) can be performed.