title: Mature teratoma arising from intra-abdominal contralateral undescended testis in an infant: a case report.
abstract: A 4-month-old male infant was seen because of an asymptomatic undescended left testis and a right sided abdominal mass. CT revealed a calcified retroperitoneal tumour. Histological examination of surgical specimens showed a mature primary teratoma of the contralateral undescended testis. While this is very rare, infants with undescended testis should be carefully examined to rule out intra-abdominal malignant tumours.
authors.affiliation: Department of Paediatrics, Osaka Medical College, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Azumagawa
authors.forename: T
authors.initials: T
authors.lastname: Mimaki
authors.forename: H
authors.initials: H
authors.lastname: Tanoue
authors.forename: M
authors.initials: M
authors.lastname: Mino
mesh_terms: D003456:Cryptorchidism / Q000150:complications*; D006801:Humans; D007223:Infant; D008297:Male; D013724:Teratoma / Q000000981:diagnostic imaging* / Q000473:pathology; D013736:Testicular Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography