Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: UMLS:C0007112 (prostatic adenocarcinoma)
 2,574 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Of 411 patients with palpable but clinically localized (Stages B or C) adenocarcinoma of the prostate, 100 (24.3%) were found at complete bilateral pelvic lymphadenectomy to have one or more lymph nodes positive for metastasis. These patients were divided into five subgroups on the basis of the location of the palpable tumor at digital rectal examination: left side only, left predominantly, both sides, right side predominantly, or right side only. Among 35 patients with positive nodes and a palpable tumor limited to one side of the prostate (clinically unilobar), metastases were found in the ipsilateral pelvic lymph nodes in 29 (83%). Only 6 (17%) of the patients had contralateral metastasis alone. A unilateral pelvic lymphadenectomy (ipsilateral to the side of the largest palpable tumor, or on either side if the tumor were bilateral) would have detected 80% of the patients with positive lymph nodes, with a positive predictive value of 100% and a negative predictive value of 94%. Lymph node metastases in patients with clinically localized palpable prostate cancer are most likely to be found on the same side as the palpable tumor and are considerably less likely to be found on the contralateral side alone. If frozen section examination of lymph nodes or laparoscopic lymph node dissection is planned before definitive therapy for prostate cancer, the pelvic lymph nodes ipsilateral to the side of the palpable tumor should be removed first.
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PMID:Correlation between side of palpable tumor and side of pelvic lymph node metastasis in clinically localized prostate cancer. 173 Jan 25

Between 1980 and 1987, 54 patients with prostatic adenocarcinoma in stages T0 to T3, M0, underwent staging by pelvic lymphadenectomy, 16 with associated radical prostatectomy. Lymph node metastases were present in 28 cases (52%). In this study, the presence of pelvic lymph node metastases was better correlated to clinical stage than to histological grade.
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PMID:Pelvic lymphadenectomy as staging before definitive treatment of prostatic carcinoma. 314 34

The accuracy of intraoperative frozen section examination of excised lymph nodes was analyzed in 40 consecutive patients with clinical stages A2, B1 and B2 adenocarcinoma of the prostate who underwent pelvic lymphadenectomy immediately before anticipated radical prostatectomy. Lymph node metastases were observed with frozen sections and verified with paraffin sections in 5 cases (13 per cent). Among the 35 patients with negative frozen sections lymph node metastases were found with paraffin sections in 3 cases (9 per cent). Despite the potential for false negative findings we believe that intraoperative frozen sections constitute a practical method of pathologic staging prior to radical prostatectomy.
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PMID:Radical prostatectomy with pelvic lymphadenectomy: observations on the accuracy of staging with lymph node frozen sections. 729 21