Morote J, Olona M, Villa J, Reig C, López M A, de Torres J A, Soler A
Servicio de Urología, Ciudad Sanitaria Valle de Hebrón, Barcelona.
Actas Urol Esp. 1992 Jun;16(6):487-9; discussion 489-90.
Correlation between findings on bone gammagraphy and PSA levels in 144 patients with untreated prostate cancer are analyzed. With prevalence of metastatic disease in 57.6% cases and considering the predictive cut value of metastasis to be 20 ng/ml, there were positive and negative predictive values of 64.9% and 73.9%, with a diagnostic confidence of 66.6%. We conclude that bone gammagraphy is essential for staging prostate cancer even in patients with PSA below 20 ng/ml.
