title: Percutaneous lymph node aspiration biopsy and tumor grade in staging of prostatic carcinoma.
abstract: Percutaneous fluoroscopy-guided fine-needle aspiration biopsy was performed for staging procedures in 31 patients with clinically localized carcinoma of the prostate and showed overall accuracy of 93.54%, with a false-negative rate of 6.46%. The Gleason grading system was found to be highly accurate in predicting the absence or presence of nodal metastases in low- and high-grade tumors (Gleason's sums 2, 3, or 4, and 8, 9, or 10). The combination of pelvic node biopsy aspiration and tumor grade can result in a very accurate prediction of nodal involvement, and may spare patients a staging lymphadenectomy or even an unnecessary radical operation.
mesh_terms: D000368:Aged; D001707:Biopsy, Needle; D006801:Humans; D008198:Lymph Nodes / Q000473:pathology*; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D010388:Pelvis; D011471:Prostatic Neoplasms / Q000473:pathology*