Cystic dysplasia of the testis: a very rare paediatric tumor of the testis.
OBJECTIVE
To describe a case of cystic dysplasia of the testis (CDT), an uncommon cause of scrotal swelling in the pediatric patient. Clinic, therapy, fertility, and radiographic and pathologic findings are discussed and the 30 previously reported cases are reviewed.


METHODS
A 9-year-old boy presented with asymptomatic scrotal swelling. A scrotal ultrasound showed a multicystic scrotal mass in the rete testis and an ipsilateral renal agenesis. The growth in size of the mass forced the authors to perform an operative exploration.


RESULTS
Intraoperative findings included a multicystic mass in the rete testis of the right testicle. Testicle-sparing total removal of the multicystic mass was performed and the pathologic examination revealed a benign, multilobulated configuration of the cysts in the region of the rete testis. These findings were similar to those found in previously reported cases of CDT. Ipsilateral renal agenesis is the most common associated anomaly. As a pathogenetic factor, mal-junction of the Wolffian duct in the 5th week of gestation is most creditable.


CONCLUSIONS
CDT is a rare cause of pediatric scrotal mass. When feasible, a testicle-sparing approach should be considered and all patients should undergo evaluation for associated urologic anomalies.
Eberli
Daniel
D
Department of Urology, University Hospital Zurich, Switzerland. dany@eberli.com
Gretener
Heini
H
Dommann-Scherrer
Corina
C
Pestalozzi
Dietegen
D
Fehr
Jean-Luc
JL
D002648:Child; D006801:Humans; D008297:Male; D013736:Testicular Neoplasms / Q000473:pathology*