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[Correlation between computed axial tomography and ileum obturating lymphadenectomy in localized adenocarcinoma of
P Suárez1, L Mondes, N Bernardo
1Servicio de Urología, Hospital de Clínicas José de San Martín, Buenos Aires, Argentina.
Objective:
To correlate the findings of CT and ileoobturator lymphadenectomy in patients with localized adenocarcinoma of the prostate.
Methods:
94 patients with adenocarcinoma of the prostate were evaluated. Ileoobturator lymphadenectomy and brachytherapy were performed in 61.1%, radical prostatectomy in 22.5% and lymphadenectomy with prostatic labeling for subsequent external radiation therapy in 5%. Lymph node CT and pathology findings were correlated.
Results:
Of 92 patients with a normal CT scan, 18 had positive nodes and 19.1% were understaged. Two patients with a CT scan suggestive of metastatic adenopathy had negative pathology findings. Seventy-two of the 92 patients with normal CT scans had negative nodes, accounting for a specificity of 76.6%.
Conclusion:
Pelvic lymph node involvement changes the prognosis of prostate cancer. However, the ability of CT to detect lymph node metastasis is limited. It is therefore not a reliable method and raises the costs of staging unnecessarily.