Detection rate of ultrasound vs CT scan in clinical staging accuracy of renal tumors pT1NxMx.
OBJECTIVE
Renal ultrasound is very important in the diagnosis of renal tumors.


METHODS
From January 2000 to Jannuary 2005 we retrospectively examined the records of 116 patients, 37 women and 79 men (mean age 54 years, range 22-77), who underwent radical nephrectomy for kidney cancer in clinical stage CT1N0M0. 2.5 cm was the tumor dimension limit between the nephron sparing surgical technique and radical nephrectomy. We subdivided the sample into 2 groups, the first of 45 patients with tumor lesions smaller than 2.5 cm and the second with tumor lesions between 2.5 cm and 7 cm in diameter all patients underwent preoperative staging including ultrasound scan (ETG) and computer tomography scan (CT).


RESULTS
Ultrasound has showed 35% sensitivity and 49% specificity for lesions under 2.5 cm in diameter, and 65% sensitivity and 75% specificity and 80% specificity for lesions under 2.5 and 80% sensitivity and 95% specificity for lesions between 2.5 and 7 cm.


CONCLUSIONS
Ultrasound is the first step in the staging of renal cancer before surgery; to assess. 2.5 and 7 in diameter CT scan is the gold standard for solid and cystic lesions.
Dachille
Giuseppe
G
Unità Operativa di Urologia, Ospedale San Giacomo, Monopoli, Bari, Italy. gdach72@libero.it
Erinnio
Michele
M
Cardo
Giuseppe
G
Maselli
Francesco Paolo
FP
Vestita
Gianni
G
Ludovico
Giuseppe Mario
GM
D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D015203:Reproducibility of Results; D012189:Retrospective Studies; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography