[Multilocular cystic nephroma. A diagnostic and therapeutic challenge. Report of two cases].
OBJECTIVE
Multilocular cystic nephroma is a rare benign entity grouped among the cystic non genetic diseases, which usually presents with a clinical picture and radiological features indistinguishable from malignant neoplasias, making impossible to rule out malignancy preoperatively.


METHODS
We report two cases of multilocular cystic nephroma which were treated with different surgical attitudes despite their clinical and radiological similarities, because on the second case intraoperative pathologic study of the specimen was performed.


RESULTS
The diagnosis of multilocular cystic nephroma was confirmed in both cases, with the difference that radical nephrectomy was performed in the first case whereas the intraoperative study of the tumor in the second allowed to perform tumorectomy with renal parenchyma preservation.


CONCLUSIONS
We consider that in the presence of a multiloculated renal mass of complex appearance and benign clinical behavior, the intraoperative study of the tumor will avoid performance of radical surgery.
Servicio de Urología, Hospital General Universitario, Murcia, España.
Juan Pedro
JP
Morga Egea
Luis Oscar
LO
Fontana Compiano
Francisco
F
Martínez
Felipe
F
García García
Andrés
A
Sempere Gutierrez
José Luis
JL
Rico Galiano
Mariano
M
Tomás Ros
D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000175:diagnosis* / Q000601:surgery*; D008875:Middle Aged; D009396:Wilms Tumor / Q000175:diagnosis* / Q000601:surgery*