[Hyperdense renal cyst].
OBJECTIVE
We update the diagnostic criteria for renal cystic masses, emphasising in the clinical entity known as hyperdense renal cyst.


METHODS
We report the case of a male patient who presented with an atypical left renal cyst. Radiological examinations (US and CT) were performed. A description of renal cyst classification is made. We review the diagnostic criteria for hyperdense renal cyst using the iconography from this case and also its therapeutic approach.


RESULTS
An image compatible with left simple renal cyst was found on ultrasound. A CT scan study showed an homogeneous mass with a high attenuation value, non vascular in nature, which complies with all diagnostic criteria for hyperdense renal cyst.


CONCLUSIONS
Hyperdense renal cyst is a simple cyst which has suffered bleeding or infection. Diagnosis is made by CT scan and it does not require treatment.
Crespo Atin
Victor
V
Servicio de Urología, Hospital de Cruces, Vizcaya, España.
Padilla Nieva
Jesús
J
Martín Bazaco
Jesús
J
Azurmendi Sastre
Víctor
V
Lekumberri Castaños
David
D
Llarena Ibarguren
Roberto
R
Pertusa Peña
Carlos
C
D000328:Adult; D003287:Contrast Media; D006801:Humans; D052177:Kidney Diseases, Cystic / Q000145:classification; D008279:Magnetic Resonance Imaging; D008297:Male; D007690:Polycystic Kidney Diseases / Q000000981:diagnostic imaging / Q000473:pathology*; D011859:Radiography; D014463:Ultrasonography
D003287:Contrast Media