[Is there any interest to perform ultrasonography in boys with undescended testis?].
OBJECTIVE
To evaluate the accuracy of ultrasonographic examination in boys with an undescended testis.


METHODS
All patients who were referred to the paediatric surgeon after detection of an undescended testis were evaluated prospectively between November 2001 and November 2004. Among these 377 patients, 87 were referred with an ultrasonogram previously prescribed by the referring primary physician. The results of the ultrasonogram were compared to the results of the clinical examination of the paediatric surgeon and, in cases of no palpable testis, to the surgical findings.


RESULTS
Ultrasonography did not detect the retractile testes. Ultrasonography detected 67% of the palpable undescended testes. In cases of no palpable testis, the ultrasonographic examination missed the abdominal testes and sometimes other structures were falsely interpreted as a testis.


CONCLUSIONS
Sonography has no place in the diagnosis of undescended testis.
Service de Chirurgie Pédiatrique, CHU Côte-de-Nacre, 14000 Caen, France.
G
G
Le Bartz
T
T
Petit
P
P
Ravasse
D002648:Child; D002675:Child, Preschool; D003456:Cryptorchidism / Q000000981:diagnostic imaging*; D006801:Humans; D007223:Infant; D008297:Male; D011446:Prospective Studies; D015203:Reproducibility of Results; D014463:Ultrasonography