[Renal cystic mass: the diagnostic dilemma].
OBJECTIVE
To determine the best diagnostic approach and management of cystic renal mass.


METHODS
Four cases are described and the literature reviewed.


RESULTS
Of the 4 cases of cystic renal mass, 2 had a previous history of renal trauma. Puncture and aspiration of the cystic content were performed in three cases; cytology was positive for malignancy in one, which was confirmed by the histologic analysis. Two cases underwent nephrectomy although one of the post-traumatic cases had a preoperative diagnosis of pararenal pseudocyst. The literature review showed a significant controversy exists concerning the diagnostic approach and treatment.


CONCLUSIONS
We advocate an approach free from tenets, where all the appropriately chosen diagnostic tools may be valid. If doubts persist after diagnostic evaluation, nephrectomy should be performed.
Albisu Tristán
A
A
Servicio de Urología, Hospital de Cruces, Baracaldo, Vizcaya, España.
Vesga Molina
F
F
Llarena Ibarguren
R
R
Arruza Echevarria
A
A
Acha Pérez
M
M
Blasco de Villalonga
M
M
Pertusa Peña
C
C
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007674:Kidney Diseases / Q000175:diagnosis*; D008297:Male; D008875:Middle Aged
Masa quística renal: el dilema diagnóstico.