Prognostic significance of lymph nodal metastases in prostate cancer

The Journal of Urology
L A GervasiP T Scardino

Abstract

Pelvic lymph node metastases indicate a poor prognosis for patients with clinically localized prostate cancer but the significance of minimal nodal metastases still is debated. We determined the progression and cancer specific survival rates based on the extent of nodal metastases in 511 patients followed for a mean of 8.6 years (range 2.5 to 17.5 years) after bilateral pelvic lymph node dissection and irradiation therapy. The patients were divided into 4 groups based on the extent of nodal metastases: NO--negative nodes (359 patients), N1--a single microscopic positive node (37), N2--multiple microscopic positive nodes (86) and N3--grossly positive or juxtaregional nodes (29). The risks of distant metastases and of dying of prostate cancer were much greater in the 152 patients with positive nodes (N+) than in those with negative nodes (p less than 0.00005). The risk of metastatic disease at 10 years was only 31 +/- 7 per cent for the NO patients compared to 83 +/- 7 per cent for the N+ patients, and the risk of dying of prostate cancer was only 17 +/- 6 per cent at 10 years for the NO group and 57 +/- 11 per cent for the N+ patients. Patients with a single microscopic node (N1) had a pattern of progression and cancer specific ...Continue Reading

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